Bricopack Vista Inspirat support Windows XP sp3
x86 & does not support x64 systems
But the earlier versions on the sp3 may give unreliable effects due to the inexperienced patcher of uxtheme.dll
So in any case of problem with the visual style, manually patch the sp3 uxtheme.dll With sp3 patcher
If you're installing bricopacks over the new microsoft product updates like IE8, & Windows Live, better to re-install them after the bricopack installation 