Xsession.d and tpb

[Tomas Krag]

Hi,

I'm running Warty on an IBM X31, and am mostly extremely satisfied with
almost everything.
I installed the thinkpad button package (tpb) and it adds a script
/etc/X11/Xsession.d/90tpb
which looks as if it should start the tpd daemon on starting X. 

However, after booting a quick os -aux |grep tpb 
shows tpb is not running. If I run "sudo tpb -d" from a terminal or from
the gnome-sessions it works.
There are other files in /etc/X11/Xsession.d/ that also do not seem to be
run. 
What is the idea with Xsession.d ?
If these files do not run, what would be the ideal place to start a
program that needs to be run as root? /etc/init.d/ ?

Any pointers welcome

cheers

/tomas