Principially you have to access forcefeedback by a DLL. I made one anytime before. I have two example, one with little manual:

Sample 1 with manual

Sample 2 - car sample (without manual - primitiv test)

The DLL isn't perfect, but fine for first tests. I'll perfectionize the DLL anytime I find time. I also gave my test level to the acknex site (demos -> vultures castle).

Acknex Site

You also can access a ForceFeedback mouse. This feature isn't ask a lot, but for people like you and me, it's a must, not? For this feature get the immersion SDK

Immersion SDK