it seems you just want to set up dual-display on your set up. it's really easy to do

. Just be sure that you have both displays turned on, and that they're set to the correct input signal on the displays themselves.
right click on desktop > properties (winXP) / personalize (vista) > settings (here you will see two boxes) > right click on box number 2 > click "attached" > make sure there's a check mark in the box labeled "extend my desktop onto this monitor" > slide the resolution slider to the far right > apply.