From: Milano, Italy
I have the same problem.
I downloaded the game through Steam (the latest patch is v1.0042); I use Windows 7 Professional, 32 bit (Service Pack 1).
The file "defaultkeys" was not present in the folder "Documenti/SowWL", but only in the folder "work" on installation.
I copied it in "Documenti/SowWL" to no avail.
The Camera Movement keys are working, but no other does.
I am the computer manager and changed the resolution to 1280 x 768.
The game under this condition is unplayable, especially for the lack of the commands: turn left, turn right, 1, 2, 3 and 4.