How do I upgrade to BerkeleyDB 4.1.25?

[Mark]

How do I upgrade to BerkeleyDB 4.1.25? I did a "file" on a db (FreeBSD
4.7R), and it says:

"Berkeley DB 1.85 (Hash, version 2, native byte-order)"

And I need a newer BerkeleyDB. However, I did a:

"pkg_add db41-4.1.25_1.tgz"

But, apart from copying a whole set of files, it does not seem to have done
anything. Can someone please tell me how to do this?

Thanks,

- Mark