well i cant even get 7.5 to run so youre further along then i am XD
ok. the way i was able to get it to work is opening the save folder in the older version and copying everything over. you need the global.rpgsave from the older versions save folder. if its not in there then you wont be able to get the older saves to work. open up the hold version again and make a new save. that should get it back in there and allow you to copy it over to the new versions save folder along with your save files.