This posting is older than 6 months and can contain outdated information.
There's a feature available on this, here:
http://www.iospirit.com/index.php?mode=view&obj_type=infogroup&obj_id=24&o_infogroup_objcode=infogroup-23&o1_infogroup_objcode=html-139
(or via "How to retrofit an AppleŽ Remote and other remote controls"
from the main page)
Best regards,
Felix Schwarz