Login and Operation Problem

I've a site configured with SQL Server 2000, RS2000, ColdFusion, and IIS 6.0 and was delivered a prototype application written with VS2005. It wouldn't run until I upgraded the site to ASP.NET 2.0 and now I can't login to RS2000 to deploy a VS2005 developed report. It repeatedly prompts for my username/password. I am also having problems determining it the ASP.NET 2.0 installation is properly configured. Is it possible to deploy VS2005 reports to a RS2000 installation running ASP.NET 2.0 or am I wasting my time. I suspected as much when I started but the demonstation of the VS2005 website is a high-priority with my customer.

From Microsoft's website: http://msdn2.microsoft.com/en-us/library/ms143520.aspx

Report definition (.rdl) files that you create in the SQL Server 2005 version of Report Designer can only be published to a SQL Server 2005 report server.