You need WindowBlinds 5.0 or later to get that glass look in XP. If that theme file has the extension .wba, then it's a WindowBlinds theme file.
One thing I should tell you is that WindowsBlinds (version 5 onwards I think_ consumes very little resources, so it doesn't slow things down as it used to. In fact, some people claim that it uses less resources than that used by Windows XP's theming engine. I can't confirm this as I don't want to install it.
Anyways...
Hackr, that IS a screenshot of Vista. It's not XP. How I can tell? Simple. Because I've used it. There is no way on hell to get the address bar like that (break points at each folder), in XP. Besides, it's version is also shown on the bottom right hand corner as Windows Vista build 5112. Sorry to disappoint you guys.
But you can get it very CLOSE to Vista if you are willing to spend some time. I don't think it's a good thing to use a transformation pack, because it replaces a lot of system files with custom files, inevitably causing stability issues.
I haven't found any theme that works better than the XP themes provided by Microsoft (in XP) and the MCE theme (Royale). In all the other themes, I was able to find at least one thing that they missed, and I hate to live knowing that. Royale theme is the best IMO.
