1. Install Aston Desktop ....
Download Link :- *www.astonshell.com/files/aston.zip
Aston is cool and has its own themes...plus u can download them from its site too --
Download themes :- *www.astonshell.com/skins/?section=0
2. Style XP...
Download Link :- *www.tgtsoft.com
Themes for Style xp can be found on *www.themexp.org
KEEP IN MIND THAT STYLE XP
WORKS ONLY ON XP ..
and be careful when u install bootscreens...or else ur sys will go kaput !!
3. Webshots Desktop ..
If u want simple wallpaper changer and related to that ...
jus download
*www.webshots.com/r/direct/install/manual1-url-*www.webshots.com/samplers/files/wbsamp.exe