Hi Alopez,
The easiest way is to use a management solution (MCX, Profiles, Puppet (?) or scripts) to set the preference for the users.
The file is "~/Library/Preferences/com.apple.driver.AppleHIDMouse.plist", the Key is "Button2" and it's value needs to be "2".
The second file is "~/Library/Preferences/com.apple.driver.AppleBluetoothMultitouch.mouse.plist", the key is "MouseButtonMode" and it's value needs to be "TwoButton".
If you want to script these into the user template, I've used the below:
#!/bin/sh
for i in `ls -1 "/System/Library/User Template"`; do
# turn on right click
defaults write "/System/Library/User Template/${i}/Library/Preferences/com.apple.driver.AppleHIDMouse" Button2 -int 2
defaults write "/System/Library/User Template/${i}/Library/Preferences/com.apple.driver.AppleBluetoothMultitouch.mouse" MouseButtonMode -string TwoButton
done
exit 0
Hope that helps!
Darren
