I've tried following the instructions on the page. However, trying to open the wurm client will leave me with a message telling me "To open this Web Start application, you need to download the Java Runtime Environment.". Clicking "more info" will simply lead me back to the java home page to download java 7. Despite that, i can run minecraft, which uses java, perfectly fine. EDIT: i've verified my Java version on the Java home page, it says i have Java version 6 update 37.