Maybe LOTR's response was because this link I can't get any search results had already been posted in the original thread. You didn't say whether you'd looked at that link or tried any of the fixes within

Heaps of people post onto threads without ever reading what's been posted prior & sometimes the helpers here feel like they've had enough of repeating themselves.

Relax, you don't get banned for something like that.

Are you using LW 5.0 or 5.1? Apparently the latest version (5.1.1) has fixed many of the search problems. If you're using 5.0 then update to the latest version & see whether that fixes things.
http://www.limewire.com/download/
If you already have 5.1.1 then go through the link at the top of this post & let us know if anything there helps.