WINE can be got from
Also, I was mistaken in my previous message, Cedega is mainly for gaming, actually I wanted to suggest Crossover office from www.codeweavers.com
if you look here:
(sorry for the long link) it seems that you are in luck and your version is working, I am not in luck the company I work for insists on using 6.0.4
I have not tried Wine or CrossOver, but I have read that Wine can be tricky to get working so maybe CrossOver is the easiest choice.
Hope this helps and good luck