per your request...and as a thought...
I went checking....now I just went checking because this has always been a little bit confusing to me, lol. I wasn't sure if people were thinking Energy blue is something new, separate or whatever...I initially thought it was a flavor of the UI used during a test phase...and then later got integrated.
so still not sure...
on your question, I went looking and found this:
Energy Blue theme for WinXP 2 - Reviews and free Miscellaneous downloads at ZDNet.co.uk
Now I've downloaded that and scanned it with my onecare
That's all I use on my Vista RC2. It reports it as good. Let me know if that's what you were looking for. And if it's really different, or just slightly.