Which file to use?

[Phan, Tom V.]

To Whom It May Concern:

We see three files, openssh-3.8pq.tar.ga, openssh-3.8p1.tar.gz.sig, and
openssh-3.8p1-vs-openbsd.diff.gz 
Do we need one of these or a different file to load? Currently, we're
running SCO UnixWare 7.1.1, and could upgrade to 7.1.3.
Thanks for your help.
-Tom Phan