Are the keyframes set to rove across time? If not, it's time to move 'em manually. Sorry.
However: unless you have a specific need for the keyframes to hit on frames precisely, there shouldn't be much of a problem keeping then right where they are.
haha, good point Dave. I guess I'm just a little OCD
this happens when you select 3 or more keys, and alt drag to stretch or shrink the sequence;