[drenkrom]

iLok.com has been crashing my Firefox 100% of the time for quite a while already. Safari works for me and I'm pretty much on the same setup you are (G5, 10.4.9). if your Safari is up to date and still crashes, it might be worth digging up MS Internet Explorer (yeah, I know...). It's still the most widely supported browser around, for some obscure reason. Camino could be a last-ditch candidate as well, but its inner workings are pretty similar to Safari, so I have doubts on it working.

Also, if you were trying about 12-15 hours ago, the site was undergoing maintenance. It might be worth simply trying the same thing again as that could've caused your problems.