how to resize a screen share using applescript in 10.8?

Hello,

I am trying to screen share on to 10 mini mac servers and then resize each window.

----I have got this script to work as a test between macbook pros using 10.6/10.7

tell application "Screen Sharing"

open location "eppc://username:password@.Mac1.local"

activate

end tell

delay 3

tell application "Screen Sharing"

activate

set the bounds of the front window to {10, 220, 517, 531}

end tell

delay 3

tell application "Screen Sharing"

open location "eppc://username:password@.Mac2.local"

activate

end tell

delay 3

tell application "Screen Sharing"

activate

set the bounds of the front window to {10, 467, 517, 782}

end tell

etcetc

----however I can not get it to work across the 10 mini macs I need to screen share. They are running 10.8.

---- I have managed to get the 10.8 mini macs to understand:

tell application "Screen Sharing"

open "vnc://Mac1.local"

activate

end tell

delay 3

---- (I could not get them to screenshare using "eppc://username:password@.MacNumber.local" or "vnc://username:password@.MacName.local" so they now log in automatically as they have the username and password remembered in the keychain) however I am strugling to get 10.8 to understand resizing the screen share windows using the bellow code:

tell application "Screen Sharing"

activate

set the bounds of the front window to {10, 467, 517, 782}

end tell

----If anyone has any suggestions, that would be ace and much appreciated !

Thanks