[squid-users] no_cache deny for swscan.apple.com

I am trying to get my squid 2.5 stable 14 install to not cache traffic
for apple software updates. I put the following acl in my squid.conf

acl apple1 url_regex swscan.apple.com \?
no_cache deny apple1

I still see traffic to swscan.apple.com in my access.log:

1176124249.216 110065 10.40.0.80 TCP_MISS/200 15636 GET
http://swscan.apple.com/content/catalogs/index-1.sucatalog -
DIRECT/17.250.248.95 text/plain ALLOW "Shareware/Freeware"
1
Which Im pretty sure means it is still being cached. Ive googled and
searched through squids website, but dont seem to be able to find the
syntax I need to make this happen. What am I doing wrong?

-- 
Dwayne Hottinger
Network Administrator
Harrisonburg City Public Schools