Migration v3 to v14 (no replies)

Hi,

I have a problem with migation from old easyphp v2 to easyphp v14 VC9.
I have corretly edited my httpd.conf (liten ip) but i cant transfer sql base. I export and import sql file, okay in the new phpmyadmin i have my tables. But joomla cant access to the database. Users seems to be okay. I think before mysql base was named "mysql" and now localhost. How to correct this ?

Thanks a lot !