fuzioneer

yep this looks like what I need, had a quick look through the documentation I think i would need the "ShoppingCartCheckoutCompletePage" HOOK but how do i specify a specific product and secondly I ask the users a question when purchasing the product using custom fields, how could I grab the answer text ?

i wanted to run an offsite script which is accessible on another domain, is there a way of doing this build in with whmcs or any suggestions on how to do it ?