Please note that upgrading/downgrading using empeg upgrade tool (emplode on Windows) replaces the whole root partition (the main player executable included). Changeing kernel via Tony's logo editor or stand-alone download utility available in source replaces *only* kernel.

If you see HiJack using 1.03 UI, that most probably means you are using kernel from 2.0bx (with Mark's enhancements), but player from 1.03. I think that proper way of upgrading from 1.03 to 2.0b7 with HiJack is to first upload complete 'regular' empeg image and then install Mark's kernel over it.