When a show finishes downloading, sabnzbd creates a directory with the name of the show, etc and my friend can't delete it with their Mac until they go in and run the permissions utility.  Why would sabnzbd be creating this directory?

Looks like he posted an example here:

 

http://lime-technology.com/forum/index.php?topic=33341.msg318067#msg318067

Already answered in his original post.

 

It's likely SAB permissions.

I still have the issue, I  can  delete  the folder,  but  I dont  want it to create them

Its almost like sab is using this as a work directory and just leaving the work directory out there for some reason.  But I could be wrong.