wtf!!! i can't upgrade to 4 version

[borbole]

Did you make a backup of your db at least prior to upgrading?

[Walter Ronny]

what you means? i used mysql administrator.im trying to do it with bigdump but im getting a lot of errors! trying to fixing everything!

[borbole]

what you means? i used mysql administrator.im trying to do it with bigdump but im getting a lot of errors! trying to fixing everything!

You can''t backup your db with bigdump.php, that is used to restore the db. There are a few posts and tutorials on how to backup the db in these forums and the online manual. You might want to check them out.