Cross DJ (PC) + Split Mono Issues

Relocated this post from general chat.
For those helping me before in general chat, I have included some screen shots.
I recently purchased Cross DJ and have a pair of native instruments DJ splitter cables. I have the audio settings set on split mono and after reading various forum threads have messed with the mix nob and various others... to no avail.
First question:
I believe (correct me if I'm wrong), but my sound card for my computer, operating off Windows 7, is IDT High Definition CODEC. Trying to check to see if it was multi-channel and thus able to work with a splitter cable, the properties tab gave this:
* LR Front Panel Analog Jack
* LR Front Panel Analog Jack
* LR Left Panel 3.5mm Jack
(There are 3 aux ports on the side of my PC, 1 mic and 2 headphones)
Does this mean multi-channel?
How else can I configure such to have dual / separate audio outputs? My issue is that when I selected the cued port to test a song, the sound is played through both outputs... and I am utilizing a native instruments DJ splitter cable.
My set up is currently two different pairs of head phones (no access to a speaker system). Could this be an issue?
Help?
Secondary, but a friend of mine uses a Behringer UCA202 Audio Interface. Would this be compatible with Cross DJ in the situation that I cannot support split mono with my existing sound card?