well, I don't think that its much of a secret that hezbollah gets all its orders from tehran.
Found this:
Mike Rogers, a member of the intelligence committee in the House of Representatives who was briefed on the Middle East situation during a recent trip to Iraq, said Syria has more than 1,000 agents in southern Lebanon, either working directly for Syrian intelligence or compensated by Syria for information. He says they are there 'to cause trouble' and help prop up Hizbollah offensively and defensively.
Lebanon is only one-fourth the size of Denmark. In a country that small, Rogers said, "A thousand intelligence agents is unbelievable. It's huge."
Along with Syria's agents, Iran's elite Revolutionary Guard is believed to be providing military advisers to Hizbollah, with some level of co-ordination with Syria, according to Anthony Cordesman, a Middle East expert with the Washington-based Center for Strategic and International Studies, and to US officials.