spamassassin + amavis

[Tom Allison <tallison@tacocat.net>]

I'm trying to get amavis-postfix (unstable) set up to use 
spamassassin.  But the README.Debian says this is disabled.

1) How do you turn it back on (he didn't say).
2) What is known about why razor doesn't work with 
amavis/spamassassin?
3) How would you add your own perl code to filter from amavis?
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	big toe will pop out of your sock to see what's going on.