The RedMin is a hack that has to do with Joomla 1.5.3 Respectfully and nothing to do with JoomGallery.
Yes I completely removed the old GalleryTab and replaced it with GalleryTab 3.
Here is a Link to my profile on my site. If you click on the GalleryTab you'll see that although the hyperlinks to the pictures are valid, if your right click on the pictures though you can see that it is pulling the IMG SCR from a different (INVALID) address.
I hope I'm making myself clear enough. As far as the Gallery itself, Yes all the pictures are fine and even if you click on the hyperlink it will take you directly to the correct photo. Have a browse around if you don't mind and see if you can figure it out, I know I've seen other complaints about the same thing so it would be nice to have a valid thread for this issue. I'm happy to answer any questions. Thanks.