Well, it's 2k3 so the scene itself would require picture eventing. I'm not really willing to explain that stuff because it is tedious, but basically you would use pictures and have a common event that navigates the scene.
Keeping track of what party members are in the party would however, be easy to explain so if you're comfortable with picture eventing, I'd be happy to explain how to keep track of which party members have been recruited, and even in what order.