I don't understand how the door welting and weatherstrip attach. The position of them. The welting is squeezed on and the W/S is glued on, but how. Can't find anything to help me. Can someone take a pic or draw a pic of how they go. Thank you very much.

You actually don't have to glue anything.  If you are using the stock original style 

door weatherstrip, the inside, upside down U shaped edge of the weatherstrip fits

over the door threshold pinch weld.  The welting is then pressed down over this

pinch weld, weatherstrip combination which captures the door weatherstriping

securely to the car threshold.

Hope this helps.

Thanks. I'm getting the Kia weatherstripping. I think I understand now.