Amazon Payments and Supporter...

This ma have been covered before and I just can't find it, I have supporter installed, if you go to the user blog and press on premium then the option for paypal purchases come up as they are supposed to but regardless what I do I can not seem to get Amazon Payments to show up, I have it set to live, I have my key and secret in there, every account setting on the Amazon side has been established, I don't know what I am missing, could anyone offer a suggestion of where to look perhaps?

Thanks In Advance,
Brad

p.s. I know I am probably lacking in information you need to help, let me know what info that is and I'll add it