Which Mac client should I use?

We don’t promote the use of Mac’s in our environment however we have two users with personal Mac laptops. They are both using older ND8 releases, and in may even be a beta.

I know that one has the Mac OS 10.5.7 installed on his. I’ve downloaded the two 8.5 clients that were on the Passport Advantage site. One said Lotus Notes 8.5 client for Mac and the other said Lotus Notes 8.5 Basic Client for Mac OS X. How do I know which of the two I should be sending out to them?

Thanks,

Pam