spam assassin help

Hi all,
        where can i get a good documentation on the uses of spam assassin
for a beginner? i have got it working with mailscanner but need more info on
configuring it to work with some blacklists sites and block by subject etc
etc....

Regards,
Daniel Tan
67469188 Ext.665
DID: 68430665
MIS Department
Shop N Save Pte Ltd
: [email protected]

[This e-mail is confidential and may also be privileged. If you are not the
intended recipient, please delete it and notify us immediately; you should
not copy or use it for any purpose, nor disclose its contents to any other
person. Thank you.]