It seems a company called phase8 has control over the server that the site is hosted on.
http://www.phase8.com/ maybe you should start there by contacting them and tell them whats going on. they may be able to help you restore access to admin areas.
Perhaps give me a shout via msn messenger if you want and I can help you resolve this. I have had this situation myself before with clients and have always managed to get a speedy acount recovery.