tcbl,
If you don't have access to the stuff on my old site, go to the link below. It should provide you with a quick 300-400 of them.
Let me know if you need help interpreting handle abbreviations for accreditation. Also, be aware that some designers will likely NOT want their work shown on your site.
http://www.whbl.net/enuttage/index.php
G'luck with it.
Which program are you using to display the logos? I may be able to be of some assistance in getting you up and running.
-E