280576 Oscommerce Discount Vouchers

Hi I have a heavy modded Oscommerce RC2 I Use fast easy checkout - however i want to install [login to view URL],4269/category,all/search,discount+coupon Discount Coupom however fast easy checkout isnt compatable with it (it works until the end then won't take the discount off the end I have [login to view URL],4148/category,all/search,ingo coupons by ingo installed however this doesnt allow certain products to apply the discount to (only apply coupons to certain products) or use coupons a certain amount of times per customer can anyone either 1) get fec and discount coupons to work together or change coupons by ingo to include product specific and coupons used 'x' amount of times per customer