Woocommerce Support with Upfront

On our site, petloversmonthly.com, we’re running into an issue where we MUST use WooCommerce, due to some client requested functionality being available with WooCommerce addons.

Unfortunately, when I activate WooCommerce, and get everything configured, the main store page shows up as completely unformatted text: http://petloversmonthly.com/shop/

I’ve attempted to follow WooCommerce’s guidelines for adding hooks/etc to make a theme compatible, but due to Upfront’s structure, I’m unable to do it.

Any help would be much appreciated.