In all the projects I have upgraded from VS2003 to VS2005, the
AssemblyInfo.vb file appears as a normal source file in the Solution
Explorer (just as it did in VS2003).

In new projects created in VS2005, the AssemblyInfo.vb file is hidden away.
I want to be able to include this file in my normal Solution Explorer file
list.

I can gain access to the file by selecting "Show All Files" and...