Your cache_swap isn't very high, but you can try this:
refresh_pattern microsoft 4320 20% 43200
refresh_pattern msn.com 4320 20% 43200
refresh_pattern .asp$ 4320 20% 43200
# Updates reasonably often
refresh_pattern home.netscape.com 1440 20% 4320
refresh_pattern unitedmedia.*html$ 200 20% 11440
# Changes very rarely, if ever
refresh_pattern .gif$ 604800 20% 2419200
refresh_pattern .zip$ 604800 20% 2419200
refresh_pattern .exe$ 604800 20% 2419200
refresh_pattern .arj$ 604800 20% 2419200
refresh_pattern .a[0-9][0-9]$ 604800 20% 2419200
refresh_pattern .jpg$ 604800 20% 2419200
refresh_pattern .png$ 604800 20% 2419200
refresh_pattern .mpg$ 604800 20% 2419200
refresh_pattern .avi$ 604800 20% 2419200
refresh_pattern .mov$ 604800 20% 2419200
refresh_pattern .wav$ 604800 20% 2419200
refresh_pattern .rar$ 604800 20% 2419200
refresh_pattern .r[0-9][0-9]$ 604800 20% 2419200
refresh_pattern .ram$ 604800 20% 2419200
# Everything else
refresh_pattern . 86400 20% 2419200
Received on Mon Jan 12 1998 - 05:47:07 MST
This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 16:38:23 MST