Quote from Madroc
Funny how half of the problems presented in the UMS assistance are unsolvable except by the person posting the problem.
If you'd posted the triggers or the map (instead of describing what you're trying to do) we could have helped you.
But honestly you learn most by finding out your errors yourself by pinpointing the problem through a series of tests.
One day you'll be versed enough and know the most common mistakes so you don't even need assistance.