Security Advantage

Need some help connecting a security camera to a computer.? I connected my security camera to my computer, but it did not come with any drivers, and none are available from manufacturer. I have a nvidia geforce fx 5200 video card. The camera is a Lorex Mini Security Camera. So my question is; How can I make the feed from the camera appear on my monitor? It shows up nicely on my TV, but I want the convenience of saving the feed to my harddrive. I think I need a driver, anyone know of a driver that would be compatible in this situation? So if I buy a cctv capture card the card will find the camera or do I need separate drivers for the camera also?