Short: … but Windows Vista SP2 16489 ThemeUI.dll, Shsvcs.dll have!
A reader that goes by the name DJxSpeedy was kind enough to smack me in the head and make me look at the two files involved in enabling third-party theme usage. They did change after all. Oops. You can now grab the freshly patched x86 and x64 binaries from the repository.
Thanks for the heads up, man.

hehe thx man for writing my name ;)
But theres 16497 build being distributed now.. When do you plan to release patches for it?
As soon as someone sends the files to me… [name]@withinwindows.com
jj
You can get latest files from here: http://rapidshare.com/files/170648369/6.0.6002.16497_XX.rar
MD5: C92888A086919EF2221F45256300B8D6
I’ll send this as an e-mail to you too.
UxTheme.dll file has not changed again, lol.
Your work is much appreciated Rafael. I hate windows standart themes, and you’re da man who makes me enable new themes.
Cheers