The last source code release I did for the web part was buggy.
Sorry part of the joy of web part dev and cached items and everything else that goes with it.
Also I took the time to migrate the code to codeplex the initial release has the bug fixes and enhancements to select different image library lists from the site, this was the reason it was based on the template part so that many of the parts will work together. The picture show 3 parts using different lists.
All source code and a place to suggest things can now be found here.
and btw codeplex rocks.