Unless the clothes that are meant for the millennium figures have something that specifically states they'll work with something else, the short answer is no. You could always use magnets to make them fit, or try to modify them in a modeling program, but that's a hassle. There are a lot of clothes available for the P4 models (well, the P4 woman really) in the freestuff here and on other sites. Keep poking around. There's a ton there, you just might not have dug deep enough yet. If all else fails, the low-res version of Vicky is pretty affordable. Good luck.