Blank white screen

[silvermerc]

Well i've just done a sever move, Moved absolutely everything manually. Im getting a white screen located here;
http://sightgaming.com/forum/
When i log in via admincp it directs me to also, a white screen.
Now i am getting database errors heres what their showing;

Database error in vBulletin :

Cannot use database rossproj_forum

MySQL Error   : Access denied for user 'rossproj_tforum'@'localhost' to database 'rossproj_forum'
Error Number  : 1044
Request Date  : Tuesday, February 9th 2010 @ 12:20:09 AM
Error Date    : Tuesday, February 9th 2010 @ 12:20:09 AM
Script        : http://sightgaming.com/forum/
Referrer      :
IP Address    : *****
Username      :
Classname     : vB_Database
MySQL Version :

I've tried making new users and its not working at all
Pleaseee help
Ross