[Lynne]

To find the actual error, you need to view the page source. In there you will see:

<!--
Database error in vBulletin :

mysql_connect() [&lt;a href='function.mysql-connect'&gt;function.mysql-connect&lt;/a&gt;]: Access denied for user 'blacksup'@'localhost' (using password: NO)
/home/blacksup/public_html/forum/includes/class_core.php on line 311

MySQL Error   : 
Error Number  : 
Request Date  : Thursday, April 23rd 2009 @ 05:57:54 PM
Error Date    : Thursday, April 23rd 2009 @ 05:57:54 PM
Script        : http://blacksupremacysounds.com/forum/
Referrer      : https://vborg.vbsupport.ru/showthread.php?t=212011
IP Address    : xxxx
Username      : 
Classname     : vb_database
MySQL Version : 
-->

It looks to me like you don't have your config.php file set up to correctly access your database. (You will have to get the correct username/password from your host.) See this in the manual for help with your config file - config.php