The card has too few CUDA cores to be worthwhile for mining.
It will generate about 2 ½ mhash/s, i.e. you will be spending more on electricity than you will earn mining.
In fact your processor might be faster.
At current difficulty level you will earn 0.09 bitcoins in 1 month or about $1.31 dollars.
At next difficulty (1.25 million) you will earn 1 bitcent per week, or 4 bitcents per month (under 1 dollar).
It's best to leave it as a HTPC card for movies, light gaming etc.. And get a radeon 5-series card for mining.
Dont care about electricity costs, how much i make, i just want it to work.