I found the following free tools that will "alledgedly" delete index.dat and other temp files in XP without having to fall back to safe mode or command prompt.

System Security Suite (Free)
http://www.webattack.com/get/3s.shtml

Free History Eraser (Free Trial)
http://smartprotector.com/eraser/fre...ory-eraser.htm

AbsoluteShield Internet Eraser ($34.95)
http://www.internet-track-eraser.com/ineteraser.php