1. Jailbreak your iOS device.
Jailbreak Guide

2. Open Cydia, go to Sources, tap "Edit".

3. Tap "Add".

4. Type http://limneos.net/repo and tap "Add Source".

5. Select my Repo.

6. Select Tweaks.

7. Select the tweak you wish to install.

7. Tap "Install".

8. After installation, open Settings to activate/buy your license and you're done.