Well you're saying you have to pass values to CC, unless you're taking over CC itself, what you are trying to do right now is being done some other way on the cc website.

Anyways, it doesn't matter. You'll wanna look into URLVariables to setup your variables, and then you'll create a URLRequest and call the 'data' and 'method' methods before you pass your URLRequest object to your URLLoader.

It's gonna be the same as any form in flash.