I have a pair of french doors on the back of my house that lead outside.
Whoever installed these doors used INTERIOR doors, but thats a different
story...LOL

Anyway, I don't have the money right now to replace the doors so I need
to repair them to get me by for a while.

The doors are made up of 4 pieces (5 if you include the glass) here is a
pic of the exact same doors that i have.

http://www.chrunck.com/kitchen/doors.jpg
If you will notice, you have a piece of wood on each side, and a top and
bottom center piece/panel.

My problem is, that the bottom center panel on both doors is rotted
away. I have already removed the rotted panels and have made new panels
out of pressure treated wood.

My question is, how should I install the replacement panels? The top of
the new panels will just butt against the glass and the sides of the new
panels will butt against the remaining part of the door.

I was just going to glue the sides together using wood gule and a
furniture clamp, and finish off the top with 1/4 round or some other
kind of window stops, after water sealing them with silicone.

Would that be sufficient? I'm just worried that the glue won't be strong
enough to secure it, so it doesn't come apart. Of course I could be
wrong, I haven't used alot of wood glue and don't really know how strong
it is. Would Liquid Nail be better?

The original panels were installed using the tongue and grove method and
obviously glued in place.

The only thing I can think of to help secure the panels using glue, is
to drill 2-4 holes on the outside edge of the doors, run in some long
wood screws to the new panels, and then fill the holes with wood putty.

Any other ideas? I hope this makes sense...LOL! Thats why I included the
pic to help explain it : )