There are lots of ways to make a bike that's a bit too small fit well, keep experimenting! Like Liza said, you can get a longer reach stem to place the bars out farther; and if you can't get the saddle back any farther on the rails but you still feel like you want to be even farther back there is the option of a seatpost with more set-back.

Neither stems nor seat-posts are terribly expensive, and are worth it to get the fit dialed in. (We've all done the fit dance, some-times folks sell their various stems and such in the For Sale section. http://forums.teamestrogen.com/forumdisplay.php?f=58 It's a good way to get parts fairly cheap.)