NinjaTrader indicator modification

I have an indicator for NinjaTrader I need modified for my use. The indicator has been provided below. Currently the indicator works with the line drawing function in NinjaTrader. When you draw a line on a chart if the price crosses the line the indicator with set off an alarm and the line will turn red. At least that is how it is supposed to work. I have had problems making it work correctly. 1. First I need some advice or corrections to the indicator to make it work correctly. 2. Also, instead of price I need the indicator to work based on another indicator crossing it. Not price.