Here is a picture how to do it in AutoCad 2004:
Extrude the topview (red), extrude the side view (cyan). Intersect those two to get the green solid. Then fillet the top lines to get the bleu solid.
Ofcourse the loft command is a fine tool, but not always needed to do things.
I don't know why I didn't think of that. I use that exact technique at work only with 3 intersecting parts at once. That looks better than what I lofted because my lofted part gave me fits getting the proper profile. I think I'll try that tomorrow night because that looks better than mine.
Update: I didn't get the windows done today so I'm going to try and get that tomorrow. I'll try and get some pics up tomorrow.