Someone contact me firstname.lastname@example.org and I'll try to dig it up.
Bleh, I think i waited too long to contact him, because I got no reply. Sucks because these tools would be extremely useful for the future (I was thinking about fixing various issues that have been in the game, like the models level of detail at a distance). psbex is also needed to create custom maps too. :(
Oh um... we sorta "migrated" to souceforge.net/p/openmachines since the forum died or something. Click the discussion button to see our new forums.
I only have the game though, since my motherboard died and I had to reinstall (still works great though). I'm pretty sure that the client Apex made still works and downloads well, and I recall the manual being one of the downloads.