IceX 1.0 relased 2005 and i dont know what hapenes in last time with this editor. I have trial version 1.0 and 2.0 and i can say for sure, in this time this is best editor for A6.

I not understand your question about colormap (dont worry - problem is in my english knowledge, not in you ). Did you mean how export colormap from Earthsculptor?