Yes, Just like with the rings, which are worn, but still have plenty of life left, I suspect that your FD just needs some basic adjustments.

As Bill K. said, if the FD is goint to the outermost ring, then it's a matter of slackening the cable so 2 puts it onto the middle ring. Also if, it's overshifting and dumping the chain over the outside, that calls for a high limit adjustment.

Hang on to your dough, and search for a tutorial on adjusting the front derailleur, or find a bike co-op where you can get some hands on guidance.

Check out the Fremont Bicycle Clinic downtown.