jamie1. Sorry for your misfortune with the HDD.
I can't speak on the troubles that your experiancing with LW, well I guess I can, DON'T Use LW when D/Ling Torrents. This is why you can't find sources for your D/L's. LW is Banned on Most trackers and it's more trouble than it's worth. The Only way is to either use uTorrent or Vuse when d/ling torrents. uTorrent is about as simple as it gets, just give it some time.
Going this route is also a little safer as you have the chance to read comments from other members about the torrent that your interested in. With LW your just out there, unless you try Bitzi.
This is only my opinion and I'm Not trying to change yours.
If you deside to go back to uTorrent and need help, Please don't hesitate to PM me if you have any issues. I will try to help you in any way I can