Thanks Ghost... The problem is that the Vista Themes are not in the list (or were not, cuz I have solved it...
)
I kept searching in the forum, and I remembered that the last time this happened I had to install uxthemepatcher (even when Bricopack does patch the uxtheme.dll file during installation). So I downloaded Ultimate UXPatcher, applied the patch, and now I can see those Vista Inspirat themes in the Themes selection combo...
Keep up the good work...
Shei Pi