For a 20Mhz crystal ...
Code:
     __CONFIG    _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
     __CONFIG    _CONFIG1H, _FOSC_HSPLL_HS_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
>> and your "http://www.darreltaylor.com/files/USBDemo2_DT.txt" also but
>> INCLUDE "DT_INTS-18.bas" not found error..

You can download the files from here ...
http://darreltaylor.com/DT_INTS-18/home.html
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