IMFD Problem Manually setting GET in AMSO

[Redwings]

I'm trying to do Apollo 8 by the numbers (using the Apollo 8 Scenario Pack tutorial), and when it comes to setting the TEj and TIn GETs, IMFD sets the respective GETs to the current GET that is displayed in the top right hand corner and TEj and TIN are set to zero. Am I entering the GET incorrectly? Or is IMFD 5.5 setting everything up automatically? I've tried to searching for the answer, but I can't find anything.

Thanks,

Paul