In the applescript utility, you have to have GUI Scripting enabled. This allows the scripts to work with "assisitve devices" such as a mobile phone.
If you havent used apple script in a while, this feature might be disabled.
And FYI, the "away" script included doesnt include the pausing of iTunes. To make it do this, add the line:
tell application "iTunes"
activate
tell application "iTunes" to pause
end tell
To the script.