The way to autostart apps in Lxde has been covered here: http://www.internettablettalk.com/fo...6&postcount=19
Briefly, you go in your debian chroot and edit /etc/xdg/lxsession/LXDE/autostart
I did it to edit the original Qole's xmodmap and load the Italian keyboard - and works.
Good luck for the launcher!