Auto Meta Tag Generator - Now What?

I bought an extension called auto meta tag generator assuming it would do what its name implies. The setup has the same meta tag fields as the product forms do. Apparently I have to tell the module what to do by putting something in those fields. I get no response from the author. I have no idea what to do with those fields. Even a good guess would be helpful.

It's hard to guess here. I'm pretty sure you need to contact the author or ask for refund, if he ignores your emails.