no brother,you don need to install anything as i am seeing that you have downloaded 2 MB.It means your initial job is done.Your problem is very simple actually.Just follow the following....

1. log out of BT.
2. Delete the torrent file from the client
3. close out of the client.
then
4. Log back in BT.
5. Download the torrent file again and follow the direction how to download.

if your problem is not solved by any chance,write your error message details here.

Enjoy :)

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Use utorrent. You will get unbelievable speed.