I'm stumped. I'm not so sure what is the right answer to your question. I'll do some research and get back to you if I discover an useful answer. You should email the people at iPage as they probably can help you..
I also posted it under installation, got one reply.
Thinks it is a cookie issue, let me know if you figure it out..
I got it to work on www.relaxdepot.com.
With a <base href="domainname.dom"> in the header..
You can also do it directly on the success page as I did on.
When you click on confirm order, oscommerce processes the order through Authorize.net, but takes you to loggin in screen instead of success screen, and does not place order in database. Again, the order is processed through authorize.net, but no history is made..
Everything worked fine until it went live..
I'm at witts end and the store is live.
Need help help help.
I think that this is in the wrong forum it should be in the Support forum..
I have the same issue and not only does it return to the login page the page is all messedup..