You could still find the drivers on the OEM's site. Do you have the correct model posted? I tried it in google and came up with a blank.
But anyways, if you have a better model name then just type it into the google search -> then go to the manufacturers site -> and they almost always usually have a full set of the different drivers for the product.
EDIT: Oh yeah, and forgot to mention, sometimes you need to go into properties of the game and especially on WIndows 7, you can set it to run as a specific os and packet. Meaning, I know if you right click and go to Properties -> Compatability, or something like that -> then there's a drop down box and you can set it up for XP or something like that and it should run.
I know I had a problem with CoD2 on Win7 and that helped me out.