Supporter - Please help me. I replaced pay-to-blog with Supporter and now....

I think I am drowning
I am pretty sure I wanted to make this switch, but now, there is no sign-up page and I don't know how to set this up so people can click a button that allows them to register - then from there, be able to select their level of registration. I need to offer the option for supporters to pay a small transaction fee% (in addition to their subscription) and for non-supporters to pay a higher transaction fee.
Would someone please take a look, tutuology dot com? Your help is much appreciated.