Great spot to download individual Windows 2000 resource kit tools

http://www.petri.co.il/download_free_reskit_tools.htm

A better way is to use the Forfiles tool, which you can find in the Windows resource kits. Forfiles lets you perform a date-based deletion. Here's a sample command:

Forfiles -p R:\MyFiles -s -m *.*
 -d -365 -c "Cmd /C Echo
 0x22@Path\@File0x22"

article on how to delete old files:
http://www.windowsitpro.com/Article/ArticleID/44891/44891.html