heyas; many figures created/saved in p4 will work in p3; they will throw a little error of 'version newer than expected.' but, after it sifts through that, it might load the figure okay. it might not. (it might crash severely, be warned.) if you see a cool free character you gotta have, no reason you can't try it out. (backup/write protect your poser.rsr and other main files.) also, you might check auctions and such for people selling poser 4. do try to buy a legal, legit copy, though.