There's a listing for this in the awstats
FAQ, but it doesn't work with the exaples provided when using the timestamp method that is installed with most qmail HowTo's.
Make the changes as listed in the FAQ, but replace the Logfile= section with a line like this
Code:
LogFile="cat /var/log/qmail/current | tai64nlocal | /usr/local/awstats/tools/maillogconvert.pl vadmin |"
This works for the most part, but I'm still wrestling with getting the virtual users' information parsed properly.