I think that it means that it can't find anyone with whatever your searching for. Then when it finds more than one peron that has it, it will start to download. Its sort of like what Napster used to do (Que -- or however you spell it).😎
I've had that same problem before. Not sure what's the cause for that but I just try to dl it from someone else. Haven't used Limewire much since I've gotten Direct Connect. The only limitation to Direct Connect is you need to have an x-amount shared to get into some of the hubs.
Any P2P app you download or buy will have the tendency to do this, even if the application is perfect.
The host went offline.
You may also have other messages, such as Waiting in line Position #: There are other users downloading the same file you want to download. You have to wait for some # of users to finish before you can start.