Your link worked ok on mine, but my Firefox has been acting up a lot quite recently. I have 2.0.0.16 for the mac, and if it has been open for a while (I don't shut down all that much, just put it into sleep mode when I close the lid), links in general (and even my bookmark bar) will not function. All the status bar says at the bottom is Done after I click on a link, but no routing takes place.
Check your kernel. Make sure you have the latest version, and then reinstall Firefox. I've never used Konqueror... just Suse and RedHat, so I don't know how robust a platform it is. I had some issues when I used first started using AW (with Suse), and a quick kernel update and FF reinstall solved it all.
Cheers,
Bubba