Urgent! restore back the admin password, or get a new one?

[nikoz]

well, i have this web site which i share with a friend of mine. I done the mistake to share as well the admin password. She changed the password(because she didnt like it!) but now we cannot log in! I tried to use " I forgot my password" in order to get emailed a new password but, i've got an error like "general error sending this email"
I tried to do it again and i it said that i have to wait 20 min in order to send another email, but to be honest even if i wait i believe that i will get the same error. Maybe its the providers fault that cannot sent the email...maybe smtp is not activated i dont know....
PLease do u have any other idea what else i could do now?
any idea is appriciated
thanx