Fedora 11, amavisd-new, clamscan and Thunderbird 3.0b4

[Frank Murphy (Frankly3D)]

My clamdrib (TB extension) has stopped working despite changing instsll.rdf

So how can I setup amavisd-new\clamav for use with TB.
Most of the googling bring up refrences to user:clamav.
http://www200.pair.com/mecham/spam/clamav-redhat-amavis.html

I have users clamscan and clamupdate.

What would\should be changed from above link?

No manual entry for amavisd-new
amavisd --help (can't make out how to use in my setup from this)

-- 
Regards, Frank