Ok. It seems to be working fine for me now -- the big problem was the cookie path. I could have sworn I needed to have that set to .mydomain.com for the vbadvanced, but when I looked through that documentation I didn't see it anywhere.
Interestingly, I now have a new problem: when I log in with Internet Explorer 6 on winXP, I get a runtime error, line 139, object expected. I do NOT get this error on the forum itself. I DID go through sessions.php and change
Code:
$clientscript_md5 = $url_app."clientscript/md5.js";
to
Code:
$clientscript_md5 = $url_app."clientscript/vbulletin_md5.js";
***EDIT*** My proxy server at work is giving me troubles and just redirected me to a directory the forum was in for testing. so I think this is probably working fine, but is just cached. *$#^%* proxies.