Can't get CSharp Web templates using GetProjectTemplate (bug?)

Hi, I'm trying to get the a CSharp version of a custom template for a Web application and I always get FileNotFound exception.

I tried putting MyWebApp.zip file in the local User's template folder and the VS Web templates folder (and ran devenv /setup) and none of that is working.

I tried the example given in another thread for VS Built in templates

solution.GetProjectTemplate("WebApplication.zip", "Web");

and it always returns the Visual Basic template and I can't get the CSharp version. Even if I try:

solution.GetProjectTemplate("CSharp\\1033\\WebApplication.zip", "Web");

I get "FileNotFoundException".

Any idea of what could be wrong

Thanks

Gabo