As I mentioned earlier, the rules for the long-stay visa for France have changed as of June 1st, 2009. In addition to what has normally been required to apply for a long-stay visa, you must now also include the OFII residence form so that it can be stamped by the consulate. You can download it here: OFII residence form
Information on the new rules and what you need to do after arrival in France can be found on the forum: First residence permit in France