Replacement Windows

Hi All, I want to install a screen door... The problem is my entry door has 2 sidelight windows so the brickmold is miles away from where it needs to be for a screen door installation. The entry door itself is hung on a recessed frame with jambs about 4 inches off the brickmold/threshold plane. I could build up the jambs with construction lumber to compensate for the recess but that will be tricky... Or will it? What are my options here? Ways of attaching lumber to jambs?? Maybe a special kit for this? Thanks for all the replies.

I am enclosing a side porch to make a TV room, and installed 3 windows in the room. One of the windows is a triple-wide awning window measuring 72"x17" (wxh). At one point in the building process, after I had installed the window, I replaced part of the roof. While the roof was open, a sudden rain shower dumped a good bit of water in the room. I didn't notice at the time, but some water settled in the window frame (I'm not sure if that's the right term, but what I mean is the 1x6 wood that extends from the actual window and sits in the framed-out jamb). Now the window frame is warped-- the middle of the bottom piece is higher than the ends of the bottom piece, like this guy's mouth :mad: . I have installed drywall around the window, but as I think about installing trim, it looks like I'm going to have to try to flatten out the bottom of the window frame. because the trim will look funny otherwise Can I just try to sand the middle of the bottom piece down until it's flat, or can I somehow use some kind of filler on the sides of the bottom piece so it looks flat?? Do I need to try to put some more screws in to see if I can bring the middle down? Thanks for your help!