Mobile/Onebip IPN Integration needed

Integration Guide Here: [login to view URL] I need help. I need to integrate OneBip safely and securely into my small website. I'd need to set this up in the express way (no login/registration required) with all the steps required to make it a frictionless experience. It needs 3 custom variables to be passed through and back as well (userid, goldamount, referred_ID). If that person was referred, to give a specific (much smaller) goldamount to that person. More details will gladly be given.