This is (almost) exactly what I was looking for from a UI. I'm trying to make one now that doesn't change or eliminate any graphics, just makes them more transparent-- like, about 50% opacity. (No luck so far... having some trouble preserving that transparency when I save the file in Photoshop... Advice is welcome.)
Specific to what you have here, the key things for me are:
1) Being able to see through the expanded map while I run around. This is AWESOME. Great job. It's a huge improvement especially in the big outdoor areas.
2) Being able to see through the LFG and LFM panels while running around (especially the LFM panel-- when I create a group, I hate having to close out this window because I'll often miss folks looking to join.)
3) Being able to see through any of the (currently) opaque backgrounds in those huge honkin' windows.
You might notice a pattern here.
I don't know why some of the window backgrounds are see-through (The "Quest/Favor" window IIRC) and some aren't. I just wish they'd standardize one look...
Regarding bugs: My zip file was missing most of the files required for the XP bar, and one of the two files that was included was corrupted.