Download, place inside /usr/local/awstats/
Either update an existing config: sudo nano /etc/awstats/awstats.xxx.conf
Or create a new one: sudo perl /usr/local/awstats/tools/awstats_configure.pl
sudo rm /var/lib/awstats/* -r
sudo /usr/local/awstats/wwwroot/cgi-bin/awstats.pl -update -config=xxx
http://localhost/awstats/awstats.pl?config=xxx