ok ill try to fill you in vaguely.
Final Fantasy 7: Advent Children - Movie based upon game. takes place 2 yrs after game.
Final Fantasy 7: Dirge Of Cerebrus - Game starring Vincent. Third person shooter. Different guns. Online with the PS2. (you do not play as Vincent online)
Final Fantasy 7: Before Crisis - Game on Cell phones in Japan. Maybe to come out on New phones in the US. Plays as the turks several years before the events of FF7.
Final Fantasy 7: Crisis Core - Game on PSP. Not much is known about it. Supposedly to take place during the events of Neighbelim (wow i mispelled that)
And thats about it. Can i get my FF7 Discs 1-3 ISOs now?