Finishing a google checkout Gravity Forms Add on.

Hi, I had a previous developer helping me with creating a wordpress plugin or addon to gravity forms so that my users could pay via google checkout. Everything seemed to be working fine on the google sandbox, but once I brought everything on to the production version of google checkout, it stopped working.

I'm currently able to have my users fill out the forms and succesfully send them to google checkout, when they come back to my site, everything is in the database except the payment successful stuff. That's where you would come in, I would need your help in figuring out why the payment information is always stuck at processing.

Thanks!

Atlante