- Google 'uTorrent' and download the latest client.
- Install uTorrent.
- Use a torrent search engine or hosting site ( demonoid.com ) and look up "Easy GIF Animator".
- Download the torrent to your desktop, and then drag it into the uTorrent icon to start torrenting.
- Once it has completed, unzip the package to your desktop and install "Easy GIF Animator" on your computer.
- Run "Easy Gif Animator".
Here, you can open your sprite sheets and edit them how you wish. You'll be able to create new frames for animation quite easily, along with other things. It's very simple and easy software.