When I try and make a payment to sign up I get the following error.

There was a problem processing your order: SGS-xxxxxx: Error (Merchant config file is missing, empty or cannot be read).

Yup, I'm having the same problem here.

Sorry about this, see here:

http://www.vendetta-online.com/x/msgboard/1/21170

I'll try and add some time to your respective accounts.

Thank you.