hey, congratulations, I'm jealous
I'd say call and find out if you have any doubts you will be getting the tickets -- and be sure to come back and let us know what they say.
The only issue I had with Kenya Airways was that they mailed me paper tickets instead of electronic, so I had to keep track of my return ticket while on safari. Otherwise, everything went nice and smooth. I bought my tickets through a consolidator rather than getting award tickets, but my WP miles from them posted really quickly without question so I would just "guess" that they are well-integrated into the system. This would be January 2004.
You might be asked to buy a $50 visa into Kenya at NBO, we were, but it was really quick.