Installing Xen

[Maimon Oded]

Hi,
I've installed FC4-T3 and then install the xen packages,
following this manual: http://www.fedoraproject.org/wiki/FedoraXenQuickstart
I've got to the step that i need to create change the domain0 RAM used,
by running:
  xm balloon 0 384

it didn't work because the xend is not running, I've tried to start it
by issuing:
/etc/init.d/xend start

after a few seconds it finished and i checked to see if the xend is up,
ps -ef | grep xen returned only [xenblkd], the logs xend & xend-debug
return no new lines,

can some one please tell me what's wrong or how i can debug this?

(I'm using the latest Xen packages)

thanks,
Oded.