Hi Ginger,
I noticed that you are using IDX Pro with your site. I have used IDX Pro on 3 of my sites so far and have been quite pleased.
I also noticed that you split up your site so that people could search different price ranges without having to use the search features built into IDX Pro. For example, if I click on "Des Peres Listings", it goes to a page that already shows all of those listings. To do that, did you just save searches from within IDX and then copy the url and add it as your linline frame url?
Thanks,
Scott