Hi,
The code is "generic", ie you need to "fit" it to the device you're using.
First time I've seen it but as far as I can see it uses TMR1 as a counter and TMR0 as the timebase. So the pulses should go to the T1CKI-pin, whichever that is on the particular PIC you're using - RB6 on the 16F628, RC0 on the 16F877 etc.

/Henrik.