The Clarkson University team is once again leading the efforts for a full day of Xen training at Lisa 2008; http://www.usenix.org/events/lisa08/training/.The full profile of the training is here: http://www.usenix.org/events/lisa08/training/tutonefile.html#m1.
Lisa event home page at http://www.usenix.org/events/lisa08/.