(REQ) can any one modify for me plz

http://www.4shared.com/file/_CeOcC5x/Trend.html

I have this indicator , that is trend line which turns RED /BLUe as per the indication given.

The line on the chart makes it really messy, can any one modify this trend line to jsut and ARROW indication ,

1) When the trend line changeses to red , it gives a red arrow after the bar is closed

2) when it turns blue from red , it gives Blue buy signal after the bar is closed

it should not re paint

thanks [-O<[-O<[-O<[-O<