sorry for my late reply,....i did as u said,....here is the displacement map from zbrush
http://shrani.si/f/1I/U/1JS4HynV/zbrushdisp.jpg

and here is what vue reads it

http://shrani.si/f/3o/D3/32RJ1JPd/vuedisp.jpg

that waht it looks like
http://shrani.si/f/3V/VY/3hDT0TZn/vuefinal.jpg

unless im doing something wrong in zbrush....