There is a newer version, and you can d/load and install it and your files will still be there. Don't know that it'll fix your connection problem, but it won't hurt. Get it here:
Lime Wire » Download LimeWire
Your gonna have to do some work on your own. The details I asked you to post are important. Your connection problem could be due to a number of different things, so answering those questions will be really helpful.
Did you try any of the fixes in this thread:
Fixes for Limewire.
We don't have esp and I can't reach through my computer screen and into yours.