heyas; what are you modelling it in? first, be sure to build it over the obj file of the figure you want to wear it. (the p4nm, i am guessing). slice the mesh into the same body parts, at the same locations as the original. name the parts the same (as the internal names, which aren't the same as the common names, so be careful.) then plug the new shirt obj into the p4nm cr2 and save it as a new cr2. from there, it might need some tweaking. check nerd's site and poserworld tutorials for making conformable clothing. (oh... steve's tutorial says to plug the clothes into the tuxedo cr2, for male figures. that has more conforming channels, so might work better for ya.) and, embarassing as it may be, it would help us help you more if you showed a picture of it going wrong. :)