508121 Zombaio Dynamic Amounts (currently using static credits)

PLEASE NOTE: I posted this project a few weeks ago and had to cancel it. There was some automated message from VISA given to ZOMBAIO about the site while the bidding was open. That's been taken care of now so I've started a new project and can accept bids again. Sorry for the inconvenience to prior bidders. ----- I have a video download store ([login to view URL]) that currently uses Zombaio as the payment processor. I'm using Zombaio's static credit system (10/25/50/75/100) but I want to change that to dynamic. I want users to be able to choose how many credits they want to purchase. They can purchase credits when buying a video or they can purchase credits in their account area. I contacted Zomabio and this was their response: "To change the amounts in a pricing structure you would have to use dynamic amounts. Information on how to post the required data for dynamic amounts is availale on page 14 and 15 in our API documentation. The API documentation can be downloaded at [login to view URL] (Zombaio API V2.13)." I need a freelancer to change my Zombaio payment processing to dynamic. The system will be for credits. The site works fine as it is so if going dynamic requires a major script change I probably will not do it. I'd like someone who has done this type of work before and understands how easy/difficult it will be.