I'm new at downloading torrents, so what does seeding mean?

I would use utorrent instead of Vuze its free to download and its real easy to use. If it says seeding the torrent is already done downloading. Seeding is kinda hard to explain but it basically means people who are downloading the torrent can get peices of it that they need from your torrent that you have already downloaded. Just try right clicking on the torrent file and you should see something that says something like open containing folder, click that and it should be in there.