Download Mercurial here.
The Pikacode was used for this mercurial demo. After creating an account using an email, it prompts you to create a repository, and asks you to specify type. Mercurial is the default choice. Conveniently, when you first navigate to your repository, a helpful "How to begin with your Mercurial Pikacode new repository ?" tutorial pops up.
Following these instructions using Windows Command Prompt, I ran into trouble. Commandommand prompt doesn't have touch (or ls, for that matter), so I had to just drop a file into the folder manually. Also, hg commit -m "first commit" asked me to edit a file to put my username in.
Following the rest of the instructions, I was able to use mercurial to commit my changes.
