Checkout Success Problem

[biffsmith]

I have edited the checkout_success.php page to add my own CONTINUE button that links to a file that resides outside of my cart directory (where all of the OSC files are).

 

When the sale is completed successfully, the checkout_success.php page is displayed with my CONTINUE button, but no matter what I do I cannot get that button to work. When clicked it returns the user to the OSC index page, not the page that I want. I thought perhaps it was a SSL problem so I've made the link https:// and it still will not work.

 

I'm sure there's something in one of the include files that's doing this (because there's nothing on checkout_success.php itself that I can see), but I can't find it.

 

Can anyone help me? THANKS!!