That fix is for Classic people! So if you don't have OS 9 on your system then you won't be able to run it anyway. Those fixes all refer to OS 9 & earlier. And I think also a little over the top with the reboots.
The 2 things I'd suggest you try are:
1. Delete your LW prefs found here:
/Users/your_username/Library/Preferences/LimeWire
2. Reinstall your Java using the "Offline" java installer for Jaguar: See Sticky at top of this section & link for Jaguar installation for link to appropriate installer.