1) probably not, i think only one texture layer is loaded, i may be wrong though...
2) yes. Pretty much anything is possible in irrlicht, it just takes work, creating water like in a bottle would require shaders (even some physics work if you want the water to move around in the bottle) and wouldn't be an easy task!
Not many formats do support normal maps. But 3ds and obj might have working support, just try it out. If you do not succeed you mihgt upload a mesh with only solid and normal maps, and I'll see if I can fix it.
thanks for replies, so if i can't export map with paralax maybe there is a solution how to load many normal maps on the level? You know, one for one wall.
Well, example 11 explains how to do this stuff manually. But you can read in another thread in the advanced forum that indeed 3ds and obj do load normal maps, but both have some shortcomings that I'm working on. Just try to export to these formats and check what happens.