Which side of Iran?

It's clear that Iran has had quite a bit of role in the initiation of the conflict in Lebanon. One question is which Iran?
This article from last week of Time magazine digs into this question. I don't agree with the key-players that he proposes (I don't really see Khamenei in full opposition against Ahmadinejad). But I believe that the general idea (probably a fight beween Hashemi-Ahmadinejad) still holds.