I'll write a tutorial for dynamic lights and decals if Blitz3D gets more than two texture coord sets.

Not to sound odd, but halo's right in this case, the only other way to do proper dynamic lighting in blitz right now is multipass rendering (2 renderworlds) I've done dynamic lighting in blitz as well and i'd personaly love some extra layers. :)
Scratching to lightmaps isn't fast enough, what you do to achieve proper dynamic lights is adjust the UV sets and texture them with a light/decal texture.