In Cydia go to Manage--> Sources --> edit( top right corner) --> add (top left corner) --> type in the repo url(repo66.ultrasn0w.com) and press add source. It will verify it which will take a minute or 2. Then press "done" and press on the repo that you added. This will show you all the apps that are from that repo. The only one that should be there will be ultrasn0w. Install it and you re done =)