change password old account

Hi there

A friend of mine wants to play CF NA with us.
The problem is we are from Europe so my friend can't make a new account.
I still have an old account I've made before the change of EU and NA CF.
I plan on giving that account to my friend, but that account has the same password as mine now and a password that I use frequently on other websites.

So I want to change the password, but I can't right now. I can't login on z8games with that account, but I can however login on crossfire itself.
Is there anything I can do to change the password?