i have water inside the passenger door of my 05 fiesta - how do i drain it out and where are the drainage holes??

I really dont think there are drain holes on a door.
eather way, the problem of water in the door exisits.
get a cordless drill and drill a small hole in the bottom of the door. 1/4" will do.
I would drilll it on the rearward section, not in the middel. this way you can jack up the front of the auto and drain out what water is in there.
Get some new window seals to stop this problem from reacureing.
when you feel all the water is out, take some r.v. silicone and put a dab in and arround the hole you drill to reseal it.
eather that or take toe door off and tip it upside down, drain water and reinstall.
I would go with my first idea myself.
also, if this is an older car with alot of rust and your not concerened, leave the hole there.

All doors have drainage holes at the bottom. Take a straightened out coat hanger and go into the holes from underneath. There are probably leaves, dirt, rust etc. in them.