Reply to Mappings for Behringer DJX700

basically ive just bought traktor because i want to take Djing to the next level! I don't know much about mappings or soundcards or anything that technical but from what I understand is i need a soundcard to use my mixer with Traktor? I was going to buy a new Midi controller but with such little money to my name it looks like this is out of the question without selling my decks, but I dont want to do that.

also I need mappings for my Behringer DJX 700,

anyhelp and advice/answers would be GREATLY appreciated!

many thanks, GraemeW