Noob question about getting started

I was trying to follow the getting started guide:
http://cocos2d-x.org/wiki/How_to_create_a_multi-platform_project_in_one_command_line

which starts with:
cd cocos2d-x
$ ./create-multi-platform-projects.py p MyGamek com.MyCompany.AwesomeGame -l cpp

I’ve download v2 and 3alpha and neither contain the create-multi-platform-projects.py script.

I presume I’ve missed something painfully obvious. Any ideas?

Hi!
You may find create_project.py script in subfolder: cocos2d-x/tools/project-creator .