Please don't post the same question several times, it's not going to get you a faster answer.

I don't know what OS you use...you posted in both the Mac & Windows sections Try this for windows:

Is your LW connected to the network (how many green connection bars do you see)? If you're connected, try this for your problem of no search results.
http://www.gnutellaforums.com/showpo...23&postcount=2

If that doesn't help then delete LW's preferences folder when LW's properly closed. See point 3 below.
Fixes for LimeWire
This will kill all of your settings within LW's options, you'll have to go back through & reset things afterwards

If LW isn't connected to the network, check out the sticky here
Connection problems? Check here first!
And give us your details
System details - help us to help you