diff --git a/YACOSWeb/WebContent/WEB-INF/jsp/registerUser.jsp b/YACOSWeb/WebContent/WEB-INF/jsp/registerUser.jsp
index f3b6ae8..afbe812 100644
--- a/YACOSWeb/WebContent/WEB-INF/jsp/registerUser.jsp
+++ b/YACOSWeb/WebContent/WEB-INF/jsp/registerUser.jsp
@@ -6,7 +6,7 @@
 
 <h2><fmt:message key="register.title" /></h2>
 <form:form method="post" commandName="registerUser">
-
+	<form:hidden path="isNew"/>
 
 	<form:label path="login"><fmt:message key="form.register.user.login" /></form:label>  <form:input path="login"/> <br/><br />
 	<form:label path="email"><fmt:message key="form.register.user.email" /></form:label>  <form:input path="email"/> <br/><br />
diff --git a/YACOSWeb/WebContent/WEB-INF/yacos-servlet.xml b/YACOSWeb/WebContent/WEB-INF/yacos-servlet.xml
index a42491b..2420eed 100644
--- a/YACOSWeb/WebContent/WEB-INF/yacos-servlet.xml
+++ b/YACOSWeb/WebContent/WEB-INF/yacos-servlet.xml
@@ -92,9 +92,10 @@
 		<property name="commandName" value="registerUser" />
 		<property name="commandClass"
 			value="org.yacos.web.system.form.FormUser" />
-		<property name="formView" value="registerUser" />
+		<property name="formView" value="registerUser.htm" />
 		<property name="successView" value="listArticle.htm" />
-		<property name="usersManager" ref="usersManager" />
+		<property name="usersManager" ref="usersManager" />
+		<property name="sessionService" ref="sessionService"/>
 	</bean>
 
 	<bean id="SArticleController"
diff --git a/YACOSWeb/src/org/yacos/web/system/controller/SUserRegistrationController.java b/YACOSWeb/src/org/yacos/web/system/controller/SUserRegistrationController.java
index 2955e8f..88493ba 100644
--- a/YACOSWeb/src/org/yacos/web/system/controller/SUserRegistrationController.java
+++ b/YACOSWeb/src/org/yacos/web/system/controller/SUserRegistrationController.java
@@ -23,8 +23,18 @@ import org.yacos.web.system.form.FormUser;
  *
  */
 public class SUserRegistrationController extends SimpleFormController {
-
 	private IUserManager usersManager;
+	
+	private SessionService sessionService;
+	
+	public SessionService getSessionService() {
+		return sessionService;
+	}
+	
+	public void setSessionService(SessionService sessionService) {
+		this.sessionService = sessionService;
+	}
+	
 	/**
 	 * @see org.springframework.web.servlet.mvc.SimpleFormController#onSubmit(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.Object, org.springframework.validation.BindException)
 	 */
@@ -37,35 +47,30 @@ public class SUserRegistrationController extends SimpleFormController {
 		// Tries to retrieve the current user : case of user modification
 		User user = (User) request.getSession().getAttribute("currentUser");
 		
-		if((user == null) && (usersManager.getUser(userCommand.getLogin()) != null)){
+		if( (userCommand.getIsNew()) && (usersManager.getUser(userCommand.getLogin()) != null)){
 			errors.rejectValue("login", "form.register.error.alreadyExists");
 			return new ModelAndView(new RedirectView(getFormView()));
 		}
 		
-		if(user == null){
-			user = new User();
+		if( userCommand.getIsNew() ){
+			usersManager.addUser(
+					userCommand.getLogin(),
+					userCommand.getPassword(),
+					userCommand.getFirstName(),
+					userCommand.getLastName(),
+					userCommand.getOrganization(),
+					userCommand.getEmail());
+		} else {
+			user.setEmail(userCommand.getEmail());
+			user.setFirstName(userCommand.getFirstName());
+			user.setLastName(userCommand.getLastName());
+			user.setOrganization(userCommand.getOrganization());
 		}
 		
-		// We should never be able to change the login of an existing user
-		if(user.getLogin() == null){
-			user.setLogin(userCommand.getLogin());
-		}
-		user.setEmail(userCommand.getEmail());
-		user.setFirstName(userCommand.getFirstName());
-		user.setLastName(userCommand.getLastName());
-		user.setOrganization(userCommand.getOrganization());
-		
 		if(userCommand.passwordWasModified()){
 			user.setPassword(userCommand.getPassword());
 		}
 		
-		usersManager.addUser(
-				userCommand.getLogin(),
-				userCommand.getPassword(),
-				userCommand.getFirstName(),
-				userCommand.getLastName(),
-				userCommand.getOrganization(),
-				userCommand.getEmail());
 		
 		return new ModelAndView(new RedirectView(getSuccessView()));
 	}
@@ -80,10 +85,12 @@ public class SUserRegistrationController extends SimpleFormController {
 		
 		// We try to see if the user is already registered and logged
 		User currentUser = new User();
+		user.setIsNew(true);
 		// TODO : see how JAAS could change the way of getting the current User
-		if(request.getSession().getAttribute("currentUser") != null){
+		if(sessionService.isUserLogged(request)){
 			// If he is logged, we use his profile information to fill the form
-			currentUser = (User) request.getSession().getAttribute("currentUser");
+			currentUser = (User) sessionService.getCurrentUser(request);
+			user.setIsNew(false);
 		}
 		
 		user.setLogin(currentUser.getLogin());
@@ -92,7 +99,7 @@ public class SUserRegistrationController extends SimpleFormController {
 		user.setEmail(currentUser.getEmail());
 		user.setOrganization(currentUser.getOrganization());
 		
-		return super.formBackingObject(request);
+		return user;
 	}
 	
 	public void setUsersManager(IUserManager usersManager) {
diff --git a/YACOSWeb/src/org/yacos/web/system/controller/SessionService.java b/YACOSWeb/src/org/yacos/web/system/controller/SessionService.java
index 67deffb..2b781eb 100644
--- a/YACOSWeb/src/org/yacos/web/system/controller/SessionService.java
+++ b/YACOSWeb/src/org/yacos/web/system/controller/SessionService.java
@@ -5,6 +5,7 @@ import org.springframework.web.util.WebUtils;
 import org.yacos.core.conferences.Conference;
 import org.yacos.core.conferences.IConferenceManager;
 import org.yacos.core.users.IUserManager;
+import org.yacos.core.users.User;
 
 /**
  * Provides Session related Services
@@ -15,6 +16,9 @@ public class SessionService {
 	private IConferenceManager conferenceManager;
 	private IUserManager userManager;
 	
+	private User currentUser;
+	private Conference currentConference;
+	
 	public SessionService(){
 		
 	}
@@ -44,10 +48,43 @@ public class SessionService {
 	}
 	
 	public void setCurrentConference(HttpServletRequest request, Conference c){
+		currentConference = c;
 		setCurrentConferenceId(request, c.getId() );
 	}
 	
 	public Conference getCurrentConference(HttpServletRequest request){
-		return conferenceManager.getConference(getCurrentConferenceId(request));
+		if(currentConference == null){
+			currentConference = conferenceManager.getConference(getCurrentConferenceId(request));
+		}
+		return currentConference;
+	}
+	
+	public void setCurrentUser(HttpServletRequest request,User currentUser) {
+		this.currentUser = currentUser;
+		this.setCurrentUserLogin(request,currentUser.getLogin());
+	}
+	
+	public void setCurrentUserLogin(HttpServletRequest request, String login) {
+		WebUtils.setSessionAttribute(request, "currentUserLogin", login);
+	}
+	
+	public String getCurrentUserLogin(HttpServletRequest request){
+		return (String)WebUtils.getSessionAttribute(request, "currentUserLogin");
+	}
+	
+	public User getCurrentUser(HttpServletRequest request) {
+		if(currentUser == null){
+			String login = this.getCurrentUserLogin(request);
+			if(login == null || login.equals("")){
+				currentUser = null;
+			} else {
+				currentUser = userManager.getUser(login);
+			}
+		}
+		return currentUser;
+	}
+	
+	public boolean isUserLogged(HttpServletRequest request){
+		return getCurrentUser(request) != null;
 	}
 }
diff --git a/YACOSWeb/src/org/yacos/web/system/form/FormUser.java b/YACOSWeb/src/org/yacos/web/system/form/FormUser.java
index fdfe964..e5ad68f 100644
--- a/YACOSWeb/src/org/yacos/web/system/form/FormUser.java
+++ b/YACOSWeb/src/org/yacos/web/system/form/FormUser.java
@@ -18,6 +18,8 @@ public class FormUser {
 	private String organization;
 	
 	private String passwordPlaceholderValue;
+
+	private boolean isNew;
 	
 	public FormUser() {
 		this.login = "";
@@ -125,5 +127,12 @@ public class FormUser {
 		return this.password.equals(this.passwordConfirm);
 	}
 	
+	public void setIsNew(boolean isNew) {
+		this.isNew = isNew;
+	}
+	
+	public boolean getIsNew() {
+		return isNew;
+	}
 	
 }