FLAPS DOWN GO BY'S WANTED

I am certainly no expert on those aircraft, but if I remember right, almost all Boeing airliners have multi-segment flaps- fairly complicated.  I think they are multi-segment Fowlers.  I have made no Boeings with deployed flaps, but have on other aircraft with simpler flaps.  The major problem is that the leading edge of the flaps needs filler strips, as the model wing halves are not solid, so there will be a gap.  For multi-segment flaps you may need filler strips for the whole flap on the first segment (closest to wing).  Depends on how far forward the gluing flange comes.

There's a tutorial on Airlinercafe that might be what you're looking for:

http://www.airlinercafe.com/page.php?id=128

Hope it helps.

I think Brad Shinn did that.  He is on here once in a while.