Database error! Please help??? Hacked?

[melodyt]

So my site is down. I am getting tons of E-mails saying Database error in vBulletin :

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Access denied for user ************* (using password: YES)

Then my info and includes/class_core.php on line 273

MySQL Error :
Error Number :
Date : Saturday, February 3rd 2007 @ 09:49:02 PM

Classname : vb_database

What the crap is happening???!?!?!

[Ted S]

Either your username, password or access to your forum database has changed. Try resetting this information and, if you feel their may be a security issue change all passwords and inform your host.