Marketplace - footer above content

Hi guys,

I have the Marketpress plugin and am running it along with Framemarket and Gridmarket on top of that. When one goes to the root of the domain (sellbys.com), the products/items display correctly, with the footer at the bottom like it should be located. However, when I click on the Store, Products, Shopping Cart or Order Status buttons/pages, for unknown reasons, the footer shows above the content. Other than changing a few font sizes and colors here and there, I haven't messed with the styling for the footer. I'm not sure what is causing this and have tried removing the products I have on there and re-listing them, but it doesn't help. I've also deleted the setup and started totally from scratch and it still doesn't display correct. I'm stumped....could you guys point me in the right direction here?

http://sellbys.com

Thanks so much for your awesome support!!

Michael