Positioning Icons on OS X Desktop

I have read that using Applescript to move icons to an exact coordinate on the desktop is not possible with OS X. Can anyone confirm this? I work in a school district and would like to copy and position a logout icon in an exact coordinate on the student’s desktop so it will match the background (like a target). If you’re wondering, no, the students refuse to use the Apple Menu to log out. So I thought I’d make it more interesting to log out. If this is not possible does anyone have any other suggestions? If you have suggestions please be specific, I’m pretty new at scripting.

Thanks,
Dan

I don’t know anything about setting coordinates for an icon…but you could use one heck of a workaround for it.

using AppleScript Studio:
create a NIB that looks like a logout icon, where you CAN specify coordinates for a window. Use a simple script to logout when the NIB is clicked on.

Then you just have to make sure your script is run at login.
You also would want to make sure that the students would not have access to quit the program.