normal maps do not work in the current plugin, as using them appears to be a bit more complicated than one might expect, (requiring at least 3 special lookup texture layers) and there hasn't appeared to be much call for them.
You talk about "normal maps" and "bump maps" as if they were two different things, both of which would be available in plasma. Both names have been used to refer to the single effect that is actually available in plasma, which is the use of a normal map (rgb) to make a dynamically lit surface appear bumpy. Not to get into semantics over these terms, but it seems to come up every time someone mentions them. The other common meaning attributed to "bump map" being more like "displacement map", (ie grayscale) which would visually deform the surface of a single face, is not something you should expect from a real time engine as old as plasma.
Also, what do you mean by "illumination maps"?