Auto Track Number iTunes

hey guys, i was wondering if there was a way to auto track number my files in itunes?

 

what is CDDB?

and i actually found a script to auto tracknumber here:

http://marv.kordix.com/archives/000863.html

but that only sets the tag tracknumber, i was wondering if somone could modify this script so that it would also set the totaltracks, since all my files already have a totaltracks tag, but since then i have delete files, and need to redo them. so if anyone could help me that would be great

For anyone that has new tracks, or just wants to set tracknumber, that is your script.