I know your code is not compiling. I tested the code from the instructable you linked and it worked fine but your code has statements that do not appear in either the Onewire or the Dallas Temperature library examples. I don't know where you got your code from but it is totally bogus.
Where did you come up with this ?
if (getTempC) ==> 55 // (STEP 5) if the Temp. is equal or bigger than 55 degrees Celsius
{
Do you see anything like that in either of the library examples I posted ?