Look at the back of you computer and have a look to see if there is another output anywhere that looks like the output that you plug your monitor into.
If your video card is AGP, I have a 250Mb AGP graphics card you can have. Failing that if you need one in a hurry check out
www.msy.com.au they still have them. Getting the drivers and installiing them is fairly easy. A new graphics card will boot up and display in 800x600 resoloution (really big blocky text) with no drivers so you will be able to use the computer until you find the driver. It's the drivers that tell the card what it can and cant do. I think from memory if you plug in the new card and do a windows update Microsoft will find the correct driver for you if not surf to the Nvidia site and download it, double click on it and your away.
Let me know if you need the card.
Sandy