Your board's URL: http://www.arsenal-land.co.uk/forum
Version of phpBB3: 3.0.2
Was this a fresh install or a(n) update/upgrade/conversion (please be specific)? Upgrade via 2.0.X via RC3
Did you use an automated wizard provided by your host to install phpBB? Yes
MODs you have installed: None
When the problem started: Following host server crash, uploaded database copy
Your level of expertise (be honest): Very basic
Additionally, you may wish to provide the following (where applicable)
Template(s) used: Default
Language(s) used: English
Version of PHP used: ?
Database and version used: ?
Error reported by forum software:
Hosts advised me that user indicated in forum scripts doesn't match that in cpanel.General Error
SQL ERROR [ mysql4 ]
Access denied for user 'arseland'@'localhost' (using password: YES) 
An sql error occurred while fetching this page. Please contact an administrator if this problem persists.
How do I fix this?