amavis config breaks // moving from debian sarge to lenny

[vmos2]

Good morning, I upgraded one of our anti-spam servers from debian sarge to etch and then lenny (long overdue, I know)

This has had the effect of scuppering the amavis installation as between sarge and etch, amavis moved from using a monolithic config file to using a config directory.

I had to uninstall amavis and put it back again. I've got the old config saved but I'm having trouble wrapping my head around it.

Does anyone have any advice or can anyone point me to a guide on how to translate the old config file into the new format?