Here it is,
I bought some waterproof tub/shower wall surround fiberglass paneling and fixed it over the frame. I need to figure out how to cut this stuff cleanly (I'm just fussy)-the DIY instuctions show using a utility knife but I don't even think the incredible hulk could put a blade through this stuff! [img]http://www.**********.com/iB_html/non-cgi/emoticons/tounge.gif[/img]
The seams between the wood and the paneling is sealed with waterproof shower wall caulk (I did not intend to use beige caulk, it came in a white tube...).
I used a 32" x 47" storm window hung upside down (so the access is the top half not the bottom). The window is only hung using waterproof caulk because I didn't build the frame to accomodate the window, I just snapped my plexiglass door today so I ran out and got the window (after a good amount of cursing of course) for $27.