Wheatherstrip Installation

Upon removing the passenger door weather-strip on my 68 coupe I notice that there is a seam/gap in the weather-strip at the bottom of each door. Is the stock weather-strip comprised of two individual pieces?

The new weather-strip is one long piece connected to the front and rear sections of the door by a tab and screw arrangement. Do I need to cut the new stripping or attach it to the door as a single unit?

Also I have a question concerning anti-rattle felts. The doors on my car were 'worked on" at some time in the past and the anti-rattle felt pads are missing. Could someone indicate where they attach to the window/door frame? I checked all the literature in my possession and on line but cannot locate a clear diagram indication where they mount.

Thanks for the help.