I have an old Performa 6200cd mac. It is a great machine but the OS is 8. I would like to run some software but most requires OS/9 or higher. Can I upgrade to this and how do I find it? Can I go on up to OS/10 after I get OS/9? It sat idle for quite a while as the cd rom drive went bad and I did not have the time or money to replace it. I just replaced it and now that it works I need OS/9 or higher to run most of the newer software. Thank you for your help!