JetBrains MPS RC1 (build) for your operating system:
JetBrains MPS Source Code:
JetBrains MPS Build Tools
1. Install JDK 5.0 or JDK 6.0.
2. Unpack the downloaded JetBrains MPS zip file or run the exe file.
3. Use .sh or .bat script in the root of the distributive.
4. Start JetBrains MPS.
5. Work through MPS tutorial http://www.jetbrains.com/mps/docs/tutorial.html