product description not accepting html

Marketpress does not seem to allow for additional product attributes (such as colour or dimensions). I'm not talking about variations as such, just being able to say that Product A is red, Product B is green etc. So this information has to be added to the description field. However any html added to the description field such as strong or line break is stripped from the description field when it is displayed in the product list (see http://hausofstone.draft.net.au/store/products/category/home-decor/). The text all runs together. Not so it seems with the single product listing.

I am also trying to replace the featured image with a jquery gallery of images added to the description field so that I can show more than one image but this is also stripped from the product listing (but not the single product display).

How can I ensure that the product listing reflects html in the description field?