i am interested in dust and i heard of a new version that plays with out a board like warhammer does is this true? and what version is it?

Yes it is called Dust Warfare and it plays like any other standard Table Top miniatures game. It has several unique system aspect like commands, reactions, and suppression. I highly suggest you look up some of the fine reviews posted in the forums and on several other gaming blogs. In particular I really enjoyed the review the guys over at D6gen did on it.

http://www.thed6generation.com/

That's their site you'll have to do a little digging for the podcast on it though.

The D6G reviewed Dust Warfare in show 102 , and it was an extremely good overview of the game.

Beasts of War also did