Recently I seem to be having search/download problems.

When I click on a topic to search, there are '0' search results. It can be any search type - audio, video, documents, etc., they all result in zero search results.

Can someone please advise me why?

I am using XP Professional (legit) including a Sophos antivirus (also legit).

Appreciate a prompt advice from anybody

Is your LW connected properly (all green/blue connection bars)? If LW's connected, try the fixes below.

1. In LW go tools > options > searching > basic & check whether the 'show license warning' box is ticked. If it's ticked , untick it > Apply > ok...see if that makes any difference.

2. Problems with the search

3. Delete LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will change all of your settings within LW's options, you'll have to go back through afterwards & reset things to the way you like them.
Vista users: LimeWire Pref Folder in Vista

If LW's not connected, try the fixes here.
If LW Will Not Connect
If nothing there helps, post back with your system details

i do not see any hosts filters

In LW go tools > options > filters > hosts.

ok thank you