http://cg.tutsplus.com/tutorials/autodesk-3ds-max/an-introduction-to-fluid-simulation-in-realflow-4/

This relaxed tutorial will teach users how to work seamlessly between RealFlow4 and a 3D package (3ds Max 2008). It will cover how to create fluid and rigid body simulations, import and export SD files, initial states, mesh filters, 3d modeling and much much more.