Well, my first instint is to say your Login module isn't really working. How do you authenticate the user? How do you redirect to the home page?
Here's how I've done it:
' Login
Entities.Users.UserController.UserLogin(Me.PortalId, oUserInfo, Me.PortalSettings.PortalName, Request.UserHostAddress.Trim, True)
' Redirect Home
Response.Redirect(NavigateURL(PortalSettings.HomeTabId), True)