Where did you all buy your vent window weatherstripping? I bought some from Harmons out of Geneva, IN and everything worked great until I put the whole assembly back in the door. Regarding the long vertical part of the vent window (not the vertical divider that seperates the vent window and the window window), after the assembly there was a good quarter of an inch gap between the weatherstripping and the frame of the vent window. The upper and lower parts of the vent window fit fine. I had thought that I had seen some success stories on this thread regarding where people had ordered this weatherstripping and had no issues with a particular supplier.