Cannot return to OSX from 9


Earlier I incorrectly posted I cannot go to 9 after x however I cannot use OSX after I have been using 9.

I have 2 partitions one for X only and the other for 9
My version is 9.02. (Bit hard to update it now)

I am really avoiding using 9 as I have spent time getting OSX going reall well and do not want to start again if I do not need to.