Recently I moved my WordPress to another server (MediaTemple), but now my admin is redirecting for HTTPS all the time, but I don’t have SSL enabled on my domain, so it just keep warning that is not the same server and bla bla bla… Well, I want to disable all those https request on WordPress. How can I do that?

I don’t believe WordPress sends HTTPS requests unless it has been told to do so. It sounds like you need to undo some previous configuration — most likely change/remove the FORCE_SSL_LOGIN constant.

You may have plugins participating as well though. Make sure to check that.

Reference:

http://codex.wordpress.org/Administration_Over_SSL