Main page

• Create a backup!
  
• Download file, unzip, copy the SWF and the XML into your WoT directory:
  .../World of Tanks/res/gui/flash
  
• Install OverTargetMarkers Editor for this you find a button on the homepage. If desired customize the visual style to fit your tastes
  You need Adobe AIR for the Editor!

• Change view between friend and enemy
  
• Change view between live and death
  
• Switch between normal view and the view when you press the "Alt" button
  
  The following settings apply to the view (1-3) that you have chosen.
  The points 4-7 are used for setting the health bar.
  
• height, width and fill color
  
• strength, transparency and color of the border
  
• used for setting the view for the damage value after a hit
  
• transparency
  
  The points 8-12 are used for setting the individual components.
  
• Drop down menu of the components
  
• Positioning of the component
  
• Visibility in the current view (1-3)
  
• Transparency of the component
  
• Farbe des gewählten component
  
  The points 13-16 are used to setting the damage values.
  
• duration of the display over the adjusted distance (14)
  
• range of the damage value over the adjusted duration (13)
  
• color of the text
  
• Visibility
  
• I don't know

So good news from Nicolas Siver.

Basically, what he writes is:
First, he will continue the work for the OvertargetMarkers Mod! He was bored and he wanted to do something useful.  
He is also with the developers of WG in contact but at this time they are very busy because of the patch 0.7. For more information follow his website.

Thanks a lot to Nicolas Siver for the great mod!