I bought some version of Office for OS X when I upgraded my old ibook. I installed it on my next mac. Now on my 3rd mac (and 4th move since then!), and I can't find the disc anywhere. Is there any way to get the software from my old computer to my new macbook? Since I can't find the disc, I can't find the license number (or whatever it's called) either. Suggestions? (Besides buy new software! I'm broke right now, but I need office for work!)