Hiyas!
From another topic, all the way from Germland, this:
Helpless rules:
Original Damage was (for example)
1d10+2 R
New Damage (using the Helpless special sit.)
3d10+2 R
How to ask FFG questions
Go to the end of this page, under "© 2011 Fantasy flight Games" ... etc. there's a very discreet "button" that reads "Rules Questions".
HtH
L