How to report a bug?

trac.www.remarpro.com

Although it says to use the login name used on here, Trac, doesn’t accept it, whereas it works on here, obviously.

Er… Actually, it works fine. I just logged into trac with my normal www.remarpro.com username/password.

Er … Actually, it doesn’t. I am unable to log into trac with my www.remarpro.com credentials.

And I have a serious security flaw that needs addressing.