It happens to the best of us!
The easiest way to determine if you have an active account with METRIN is to try and sign up for a new account. If your email is already registered then you will get the following error: "The e-mail address firstname.lastname@example.org is already registered."
At which time you can go ahead and click the forgot my password link.
If you don't have an email address then please give us a call.