skinning is defenatly not happening any time soon.
it adds unneeded bloat.
if you want to improve how FlashFXP looks and running winxp, just add manifest file to flashfxp dir.
search your hd, you should have at least one <prgrmname>.exe.manifest
just rename it to flashfxp.exe.manifest and restart ffxp
this is what enables winxp skinning support in all prgrms.