I like to have configurable products with the ability to choose the options right on the category page. Magento do not have such a possibility, however Inchoo posted how to do it. I tried it myself but it didn't work out, therefore I need you to fix it.
You can see how to do it on this page:
[url removed, login to view]
I need it to be fixed quickly. I have to say, my website is heavily cached so it could be that changes do not show right away.