Fire Arrows & Bow of Seeking

The two items concerned, are these:

Fire Arrows (from Annual 2002):
Fire arrows are tied with rags soaked in oil up in a tight pouch that explodes bunched up in a tight pouch that explodes when hitting the target, setting clothes and equipment alight. If you hit with a fire arrow roll a D6. If you score a 4+ your opponent has been set on fire. If the warrior survives the attack they must score a 4+ in the Recovery phase or suffer a Strength 4 hit each turn they are on fire and will be unable to do anything other then move. Other warriors from the same warband may help to put the flames out if they wish. They must move into base-to-base contact and score a 4+ in the Recovery phase.

and the Magical Artifact, Bow of Seeking:

Any arrow shot using this magic bow will pursue the target and hit it even if the target is behind cover. Treat this as an Elven bow that always hits on a 2+, regardless of any to hit modifier. Such is its deadly precision that all the arrows shot with this weapon count as Hunting Arrows (+1 on all Injury rolls).

It's says that the arrows 'count' as Hunting Arrows, due to the bow's deadly precision, not that they are Hunting Arrows. If so, there shouldn't be a problem in using Fire Arrows with them, right?

And an additional question: Can these Fire Arrows be poisoned?

I agree that fire arrows could be used with the Bow of Seeking.

I would say no to poisoning fire arrows not because of rules but just because it sounds silly.

Alright. Would probably be a bit overkill as well. I don't see anything in the rules, that should hinder it, but the expensiveness in it might be enough.