There's a manual here:
http://weewar.com/help
and video tutorials here:
http://www.weewar.info/weewar/show/Tutorials
Its so simple, a manual really isnt needed. simply click on a unit, it tells u how far it can move, asks you to confirm. Same thing with attack. To build a unit click on your base and a popup will happen asking you to select a unit that you can afford.
If you like, I can start a six player game if people here would be interested. Simply send me your email address to
inigmatus@gmail.com to get an invite to the game.