Yeah, it's a contradiction. Since the rule of resisting with Willpower only is both in SR4A and Running Wild, i'll rule that we're using just Willpower.
Also another thing, Kot, you don't seem to be linking your roles correctly to Invisible Castle. You just need to copy the BB code at the bottom of the page that displays the results of your roll.
Don't worry, you can still do well, just try to use more strategy. The hellhound that attacked you was also only going for a submission. He won't start to do damage until his next round and each complex action you have you can attempt to break the submission. You can also cast spells at the hound though, but I'm gonna say that you need to succeed in a Reaction + Agility (2) to obtain line of sight in order to cast an LOS spell. You can definitely cast touch spells though.
That's what one of the reason's why we're doing these types of scenarios, so that you learn how to tweak your character.