I need a programmer familiar with Social Engine to add modification to signup/subscription plugin.

I need to be able to create coupons for free or discounted memberships and ad services.

Currently, these plugins integrate with paypal for payment but whatever price I have set is the only variable passed on.

I need to create dicounts that are entered at order time and will automatically change price and duration to pass on to paypal.

Must work on:

- Subscription page
- Ad pages