Need to bake my maya material?

[RaideX]

To answer your first question: No, you don't need to bake any map in order to get your model into the engine properly. They are two separate things really. My guess would be that you have some issues with properly exporting your model. There's a pretty good tutorial on this topic here.

Regarding the particles: Creating particles is done in the particle editor included in the HPL editor suite. In general you have textures that you manipulate with the particle editor to get the desired result. More on that right here.