Oh, yeah!!! I can enter credit card info now!
I think I may be almost there. I was a little unclear about the dragging/dropping of the Full Request and Full Response bindings. I wasn't sure whether to do that from code view or from design view.
I tried code view first, and it didn't work, so apparently the design view was the correct choice, because it gave me the detail info.
I used the 4111111111111111 test card number, and got the attached response (At the beginning, I've replaced the store number with X's). I don't know how to make it appear correctly in this post, so I'm attaching it as a text file. However, it ends with:
"SGS-020003: Invalid XML - invalid tag cardexpyear"
So this is what we would expect, right? If I used a real card, then maybe I'll get a success?
I've been waiting to buy the SSL, so if you think it looks like it will work now, I'll go ahead and do that tomorrow and try a real transaction.