After installing either version of Squid, I kept getting this error; /pkg_mgr_install.php: The command '/usr/local/sbin/squid -k shutdown' returned exit code '1', the output was '/libexec/ld-elf.so.1: Shared object "libcrypt.so.4" not found, required by "squid"'
As a work around I logged into PFSense through the shell and
#ln -s libcrypt.so.5 libcrypt.so.4
and everything worked great. BTW this is with "pfSense-2.0-ALPHA-ALPHA-20091016-0906.iso"
I am amazed at how well eveything is working considering this is Alpha. Keep up the great work.