Cubase 5 templates crashing

I’m working with another composer on a video game, and I’m trying to edit his main theme. First off, when I open the template and search for kontakt libraries that he used, but in my own HD of course, I cannot load alot of them which is weird. Also, when loading kontakt 4 it crashes. I can play the template fine with some of the kontakt instruments running, it’s just when once I load up kontakts interface it crashes.

I’m using the latest version of Cubase 6 on a mac pro, he’s using Cubase 5 on a PC.

Let me know if there’s any more info I can provide.