[squid-users] No caching

After getting Squid set up on the same host as Zope, I thought I was
getting Squid to serve out cached Zope pages, but it looks as though it is
simply acting as a redirector... Here are a couple of access.log entries:-

1102960638.320 37210 127.0.0.1 TCP_MISS/200 1566 GET http://localhost:8080/guestbook - DIRECT/127.0.0.1 text/html
1102963204.410 480 127.0.0.1 TCP_MISS/200 3325 GET http://localhost:8080/ - DIRECT/127.0.0.1 text/html
1102963205.490 30 127.0.0.1 TCP_MISS/404 1369 GET http://localhost:8080/favicon.ico - DIRECT/127.0.0.1 text/html

Do I need to configure Squid (or Zope) in some way to keep some pages in
cache? The cache is completely empty.

-- 
John