First off, let me clear up a common misconception. TorrentRover is a search a download tool for torrent files, but it's not a full torrent client. In other words, you still need a torrent client (e.g. uTorrent) to download the torrent contents. TorrentRover helps you find what you're looking for.
Secondly, if you open the torrent in uTorrent and there are no seeders, that just means that the torrent doesn't have anyone with a complete copy uploading at the moment. There's nothing wrong with TorrentRover here. It's just a dead torrent.
Lastly, there is a feature in TorrentRover to hide these "dead" torrent results though. Go to Tools -> Preferences -> Filtering (tab) -> Torrent Quality (section) -> Remove peerless torrents... and Remove seedless torrents... See the screenshot below.

- Remove seedless results.png (78.85 KiB) Viewed 155225 times