Not sure if this is a version issue.
I have just installed pixgallery with the AWESOM mod. It created the cache fine, and I can see little boxes with links where the thumbnails should be, but the thumbs aren't there.
You can see the problem here.
Oh, and the photos show up fine when you click them, and the gallery folder is guitarsoundstudio.com/customers/photography.
Any advice would be awesome! Thanks!