Font question: New Baskerville for Y&Y

[David Ireland]

Dear Techsupport Group,

I'm working on a file for a book that is in default Computer Modern and I
want to change the whole thing to New Baskerville.  I have placed in a
folder named YANDY\FONTS\nbaskerv all the New baskerville files I think I
need (tfm, fd, vf, and type1 files, together with config.pnb and pnb.map).

Please excuse me if I am being dumb here, but what do I need to do to get
the font working in the tex file for the book?  The Companion is somewhat
confusing on this.  (You'll probably have guessed this is the first time I
have done this!)

Thanks in advance for any advice offered.

David Ireland