Symlinked Folder and Customer avatars/etc
 

My system is set up so that uploads/downloads (files, etc) are stored on a separate subdomain that runs on lighttpd. I trick the system into making this work my including a symlink in my vbulletin folder named vbtest, and then doing a little htaccess redirect so that anything that looks for the regular link ( mydomain.com/vbtest/folder/file.etc ) will instead pull it from the lighttpd domain ( lighttpd.mydomain.com/vbtest/folder/file.etc ).

This worked great for my Downloads2 files. It also worked for vbulletin's tmp folder. However, when I try to move customavatars, customgroupicons, and customprofilepics to the same place and do the same thing, vbulletin tells me when I change the settings I get this error:

I already made sure it was set to chmod 777. Is there something else I am missing?