Thanks.  The Silo user base made mention of this as a possible way to convert the maps until Silo can export them but reviews haven't been great. According to the users who've tried it, the program only saves 8 bit grayscale displacement maps at 512 x 512 and I've found at least 1024x1024 to be needed for detail to show up the way it's intended when using an 8 bit map. Ah if I can only convince the team to let Poser use 16 bit maps! Still, it may be worth a shot, maybe I can work some magic out of it...

Thanks!