I did this step now from the link you provided.
Then I rebooted from the startup CD and ran Disk first aid after the installation to check/repair any possible problems (I find "safebooting" with the Shift key causes me video problems, since mine is not a multi-sync monitor).
Rebooted and tried Limewire. Back to the same old problem - Limewire just bounces in the dock and refuses to launch.
Limewire definitely doesn't like Java 1.41
I think the previous version of Java was 1.31. I'll check if it is so and see if that solves me problem.