I'm assuming the back of the card looks something like this:
http://www.ncix.com/products/index.p...nufacture=ASUS
If it does, you will simply need a VGA cable to hook up to one of your LCD's and a DVI cable for the other. Windows (XP, Vista, 7) takes care of the rest. It will be identified and will initially clone the second monitor to mirror the primary one.
From here, you will have to select your display properties and select the option "Extend my desktop to this monitor", select a primary monitor, and you're set to go.
However, if your monitor only has one output, you're pooched.