How much are you willing to spend? That card'll work, yes, but if you're willing to drop $150-$200 you could get a decent card and a new power supply to go with it.
The thing you want to do is to look up the system requirements to play the game and what the minimum and recomended requirements are. The link below is a chart for video cards and where they fall in best to worse;
That card is almost useless, you won't be playing TOR on it except at lowest details and a low resolution. It is, however, an upgrade from the integrated GeForce 6150. I would go for a more powerful card that does not require a PCI-E power connector if you can afford it, such as a Radeon HD 5670, but again, take care with the power supply.
Do you have any kind of budget amount that you are working with? That will tell us if it is a possible upgrade that you can do or if you are out of luck at the moment untill you can save up more money.