I need to get a payment processing module written for a jobsite that will pass the handling of any payments on my site through to another script called JV Manager.
The existing script I am using for my jobsite is called iLance and among the existing payment processing built into the script includes PayPal, I need an additional module written that will mimic the existing PayPal module but instead of calling PayPal to handle the payment I need control passed over to JV Manager, normally through a url (dependant on what is being purchased) which will record the details of the sale any affiliate information and will itself handle the payment processing which will be via it's own payment processing modules. At the end of the sale control will be passed back to the jobsite.
Complete source code access will be provided to the jobsite script but not to JV Manager as the code is encypted. Any integration information as to the best way to write the new module will also be provided.