Thanks for trying. It will work if you don't put too much information in. Try filling at least all of the shipping options and give a full-size credit card number (no validation in place yet, so any will do). In my case, I'll put in the following info and it'll be too much:
Sean Laibinis
Northwest Business Stamp
5210 N. Market St.
Spokane, WA
99203
509-483-0308
nwbs@nbstamp.com
CC: 1234123412341234
05/05
Give that a try and see if it hangs forever on you. It does for me. Thanks for your help.