The "opera" windows push out with the glass still in the rubber seal, but gently, like from a corner first, from the inside of the body to the outside. The 260 Hayes manual has an explanation of how to remove and install them, installing is a bit trickier than getting them out. You use a wire or cord, and pull the cord to pull the rubber seal edge over the metal lip. Look in a manual. I've done it, and it was certainly a puzzle until I read the manual. I have info at home on how to get that trim off, I'll try to post it here tomorrow.