Highlight the file you are downloading from here and then click on the tracker tab.
It should give a list including DHT, Local Peer Discovery and Peer Exchange. They will be marked "not allowed" - which is right because it's a private torrent (only available through the mousebits tracker).
The next one should be www.mousebits.com.announce.php etc.
That should say "working" with a time under the "update" column.
If you are showing nothing at all (just the DHT "waiting to log on"), the client isn't working so maybe your ISP has blocked P2P sites or, more likely, you are behind a Firewall and haven't given permission for the client to get through. The firewall could be in Windows, your router or even your virus scanner (or any other program you have installed woth one).
You could, for a start, turn off any firewalls you have just to test and see if it works then - the same with the virus scanner (remember to turn them all back on as soon as possible).
uTorrent is the simplest and most foolproof available (IMHO). make sure it's up to date.
If it's the firewall, others probably wouldn't work either.
You could try Vuze or Bittorrent (same as uTorrent now but a fresh download may help - they will run together)
You didn't answer my other question. Can you download from other sites OK?
If so, what does the tracker show then?
We'll get there, don't worry. Don't give up.