Hi, I'm not very good with AppleScript yet. I would like to use a script in a trigger that checks the status of the motion detector in my kitchen, and if it's in the off state, turn off the lights. Any help appreciated, thanks.

Are you using Indigo 5? It supports conditions in the Conditions tab against device states, so I am not sure you need to use a script at all.

Yes, but what I have is a scheduled event that changes several device states as its action, but the kitchen lights are the only one of the list I want to check the motion detector status first. I thought executing an AppleScript would be easier, so that condition is set for only the kitchen lights, and the others just run normally.

Easiest way is to have two different schedules with identical time/date specifiers - one for the one that does all with no condition and another one that has the condition. No scripting required.