After sending another email requesting support last night, I received a response this morning that the problem has been fixed.

I very excitedly began to create a new account & register my device. I selected the option to open a premium (paid) account & upon completion ended back up on their main page. So logically I logged in to configure my device...

Immediately I was stopped, however, with an error 500! The very same error at the very same place where this entire process started. Only difference this time is this time I signed up for a $19.95/quarter payment first. The entire process has gone from frustrating to ridiculous in one quick instance...