I finally got PainlessSVN to read the icons that are associated with files in the Windows shell. That took some Win32 API hacking though.

Here's a screenshot of the left hand side treeview:

Here is a screenshot of the details pane:

I got the base code for doing this from this Microsoft link:

www.microsoft.com/downloads/details.aspx

This code is VB.NET, but it's fairly easy to convert to C#. Ok, I cheated. I pasted the VB.NET code into SharpDevelop 3.0, and let it convert it to C#. Didn't have to change anything. Visual Studio took the code without complaining.