I can't log into the CGI proxy

Did you sign up for Email Only?
Email Only does not include access to proxies.

Are you typing your account name all in lower case?
Account, ACCOUNT, and account are three different accounts, use all lower case all the time for your account name with us.

Are you allowing cookies from tusk.cotse.com?
Many privacy tools strip the authentication token for htpassword authentication.

Try changing your password.
Sometimes this password can be out of sync, especially if you just upgraded or downgraded. To fix this Options-Change Password in webmail and change your password.