Data FolderMake sure you close your MT4 before downloading the True Trend

Download one file at a time by saving them to Indicator Folder  inside MT4.

Click on FILE and then Open DATA FOLDER > MQL4 > INDICATOR and save it to that folder.

Do not try to open the file but rather save it there.

True_Trend 

Add the indicator to your chart

After you have downloaded the indicator you can add it to chart by clicking:

Insert > Indicators > Custom > and then choosing the True Trend

Or double click on the True Trend from within the Navigator to attach it to the chart.

True Trend Settings

NextGen True Trend settings at 14.06.44