If you're using LW 4 then you could try chatting to the host & asking whether you can direct connect with them (click on link for more info):
http://www.gnutellaforums.com/open-d...owse-chat.html
LW 5 doesn't have a Chat function or Direct Connect - rather it has a Friends 'feature'. So if you actually know the person whose files you want to download, you could try adding them as a friend & connect that way (click on link for more info):
Friends - LimeWire