problem with migrate server

I needd to change server to another supplier and i have a lot of problems.

I copy all data directory and files directory to new server, in new domain.

But my problem is i do all that say in http://docs.elgg.org/wiki/DuplicateInstallation but when i upgrade it, it doesn't work.

You can see it in http://www.opensocial3.com/upgrade.php.

I copy directory /home/tarraxxxx/files.net to /var/www/euvexxx.server4you.xxx/ and same with data