Spamassassin help

["Brad Alpert" <BAlpert FortBradford com>]

I'm not able to successfully flag specific "From:" addresses as
non-spam in spamassassin.

What's the quick and dirty technique?

What I've tried and which does not work is to save a message that
was marked as spam and run it through spamassassin with
"spamassassin -W <message.ext".

According to the help, this should add the headers to the whitelist,
but doesn't seem to.

Any help appreciated!

Thanks/Brad