Eeer, I'm not MenthiX lol...
I still don't get everything in your 2nd post but whatever. WLM's got only one Idle status triggered by the "Show me as away after x minutes" feature, but also by the Windows XP's "Session switching" (don't know how this is called in english Windows versions, the Win+L thing), and maybe by the screensaver too?
About your suggestion, I don't know if it's really more accurate than the existing sentence. When an user is Away, he's not active either (supposedly)...
edit : yeah, he even changed it in the quote tag... ?