MOSS 2007 auditing by Mark Deraeve
I was asked today to enable auditing on a document library because there are always documents dissappearing from this library. Never having done this before I googled a little around and found an excellent article on how to configure this on a site collection written by Mark Deraeve.
If you need to set it up, then go read Mark's article at http://www.dailycode.net/blog/post/Auditing-in-MOSS-2007.aspx