Hello halkun, long time no see...
FF7 battle scenes are fully decoded, i've implmented them into Biturn viewer/convertor. Also I think that Ficedula has done some viewer program for it too.
FF8 models... i would think that Qhimm has decyphered most of it, I think that he can view battle models and IMHO battle scenes are not too far from battle models ... Me myself can view only field models of main characters. Also someone found on the net some viewer for FF8 battle model creatures.
But thats all on PC versions. AFAIK only Cyberman was doing something to PSX FF7...
What exactly do you need ?