HamRad,
Not with that one, but sometimes we have had squeaks around the bathtub. Al got down there, pushing around on the tub and the floor, discovered it was the plastic of the tub rubbing on the floor. We used one of our old solutions for squeaky hardwood floors, a little talc powder, you know, like baby powder. Applied to the area, wipe up the excess. Squeak is reduced to almost nothing. Might be hard with stuff around carpet, but works pretty good on hardwood, and other non-carpeted areas. Lasts quite a while too.
Carol