the dreamscene feature looks insanely cool on the Vista..
i was able to find this for XP..
although i havnt tested it yet. .
u can also check out these softwares..
Animated Desktop Dream Wallpaper - Microcyb - Darren Hedlund DreamRender .dream dream render
DESKOPDREAMSCAPES // OSBeta.org : Systemy operacyjne, nowe technologie i aplikacje które do u¿ytku domowego dostêpne bêd± dopiero za kilka lat (polish i think)