Actually, it is not a browser interfacing with the script. How it ends up working (which I think is still lame (sad, stupid, and typical, quote/unquote)) is a transaction happens from a browser that posts to them, then their server posts to my script on my server, which then posts back to them, and waits then receives a response back. Some of it is for security, validity, etc. I still think it is lame that they check for an exact order though. Thanks everybody for the help.

Michael Jensen
michael at inshift.com
http://www.inshift.com