Hi Mysterious!

1) now I have two "acknex.wdf" : It's the one in the CD folder that will do
the work when you move your game to another computer.

2)but I have many levels should I create one for each level, : Are you making
a game or many games? If your are making one game they should be in the same
.cd folder after publishing.

3)where should I put the acknex.wdf file? : in the folder contains the resource ".wrs" : After the publishing of your game in the .cd folder test your game with
this file out of the folder If the game doesn't work you will have your answer.
edit : I checked my bindfile.wdl and acknex.wdl is not in it.