USB and PBP

hi
I like to khow how I can use usbinit,usbin,and usbout instructions in PBP
I have bought a pic16c745.I find a tutorial on the web:
Connecting a PIC to USB.
But it has been written in asm.Can anyone write it in PBP?
The address of home page is:
http://www.alecmcnamara.freeserve.co...calc/index.htm

There are very comprehensive examples included with your compiler (from version 2.40 onwards).