Jo Ann,

Peerless does have a web-site with diagrams and advice. From your brief
description it's not clear whether you need new parts or just need to
tighten something, so go to the web-site. Parts for your faucet are probably
available at most hardware or plumbing stores, if you need parts.
Spray the parts that need to unscrew with penetrating oil (WD40) before
you start and let the oil work for half an hour. Turn off the water. Use the
right tools. These faucets are not hard to fix.

Dave M.