Suite Database Error while trying to upgrade from 3 to 4
 

I'm trying to install Publishing Suite 4.03 on a test site. I had to have my hosting company upgrade MySQL and PHP but now we're getting a database error. Here's what it says:

Database error in vBulletin :

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Access denied for user 'XXXX'@'localhost' (using password: YES)
/home/xxx/www/web/xxx/includes/class_core.php on line 312

MySQL Error :
Error Number :
Request Date : Friday, July 16th 2010 @ 04:28:27 PM
Error Date : Friday, July 16th 2010 @ 04:28:27 PM
Script : http://64.111.26.119/cbtforums/index.php
Referrer : http://64.111.26.119/
IP Address : 68.35.135.208
Username :
Classname : vB_Database
MySQL Version :


Can anyone help me figure out where to go from here?
Thanks!
Nick