This is not even funny, but I am chuckling anyways... All this hassle for what? An error message? :-)

Can you connect to the network at all? If so, there isn't anything to be overly concerned about- UNLESS the error changes to something different.

If you are not able to connect to the network at all (make sure first), then... congratulations! Your system doesn't like the new java inplementation LimeWire uses, and now you have to download an alternate version! Aren't you excited?! [Groaning from reader. "Not another download."] I'm sorry you're having to go through so much just to get LimeWire running. What a hassle!

Try this one out.

http://www9.limewire.com/download/LimeWire16d118.exe

The LimeWire team released it for people who are having connection problems.