Aside from the fact that the current Apple Remote Desktop Installer requires 10.6 and doesn't want to run in 10.7 one of the more vexing aspects of working with ARD is that eventually one becomes heavily invested in the library it creates and setting up a new installation or moving a library to another machine is problematic.
The following instructions allow for moving an ARD installation and/or the library of machines, stored commands, groups, etc. that collect with heavy use.
These are all the relevant files to make ARD work, assuming ARD doesn't exist on the target machine already:
sudo scp -Epr /var/db/RemoteManagement root@machinenameorIP:/var/db
sudo scp -Ep /Library/Preferences/com.apple.RemoteDesktop.plist root@machinenameorIP:/Library/Preferences
sudo scp -E /Users/username/Library/Preferences/com.apple.RemoteDesktop.plist username@machinenameorIP:~/Library/Preferences
sudo scp -Er /Users/username/Library/Application Support/Remote Desktop username@machinenameorIP:"/Users/username/Library/Application Support/Remote Desktop/"
Mac OS X Hints
http://hints.macworld.com/article.php?story=20111024010505550