One more thing, in the sample code there is one line that seems wrong:   

Wire.beginTransmission(address);  

Wire.write(®, 1);

  if ( Wire.endTransmission() != 0) { 

 return 0;  

} 

 The

 Wire.write(r,1) 

line above is obviously wrong, but cant find what the correct line is. Any suggestions would be greatly appreciated