I actually have the opposite question (though I had the same problem-thanks!):
I would like to to remove lxpanel from a user account and restrict access so that users can only run firefox (in kiosk mode using rKiosk(?)) from an icon on the desktop or logout.
I would also like to run it using PXE in order to centralize my configuration. (unless there is a better option of course.)
I also need the ability to restrict access to a single site.
In short I'm making a set of Linux (Slitaz) based kiosks and need to lock almost everything out.
General Specs (just FYI as I haven't had any problems running it thus far):
These are old Dell Optiplex 540s/745s most with just 1 Gig of RAM or 512MB.
Pentium 4 or Core Duos at 1.3Ghz
All should be Network bootable.
-please let me know if I should post this else-where.