For now, there's no packaged version of coverhunter. So you'll have to install it by yourself. It's really easy. All you have to do is follow these simple steps.
First off all, you must make sure you have at least the following software (or any greater version) installed.
Now, just unpack the tarball, go to the created directory (coverhunter-X.X) and run the following command (either as root or using sudo).
$ python setup.py install
That's it. CoverHunter is now installed. But before running it, you should go to this page to get an amazon Web Service Developer's Token.
Once you got the token, type:
to run CoverHunter, and then enter your token in the "Set Amazon Token" dialog.