The software is called ntp (network time protocol). There is a lightweight version called sntp (where s stands for simple).

Instructions and software can be found here:
http://empegbbs.com/ubbthreads/showflat.php/Cat/0/Number/171369/page//fpart/1/vc/1
http://empegbbs.com/ubbthreads/showthreaded.php/Number/170766#170766
http://www.differentpla.net/~roger/empeg/car/files/
_________________________
Michael
Ex-owner of stolen empeg #030102741