ASP.Net Forms authentication issue

Question

Hello everyone,

I am using SharePoint Server 2007 Enterprise with Windows Server 2008 Enterprise. I have deployed a collaboration portal template based SharePoint site collection. I am developing using ASP.Net web application using VSTS 2008 + C# + .Net 3.5 + ASP.Net + SharePoint Server 2007 SDK. I am devloping a custom Forms authentication component (a DLL) and wants to register it to be used in SharePoint sites.

I heard for SharePoint Server 2007, custom Forms authentication can only be used for publishing portal and can not be used for collaboration portal. Is that true?

I am following steps here, and after configuring Forms authentication, then I begin to browse the site default front page, there is 404 error. Any ideas?

http://msdn.microsoft.com/en-us/library/bb975135.aspx

http://msdn.microsoft.com/en-us/library/bb975136.aspx

thanks in advance, George