Thanks for your report and fix

yesterday I installed 0.6.0 on a fresh Debian Lenny (its a VPS with a "minimal" Image). I already fixed them for me, but you may consider fixing it in the installer.
Cron:

Cron <root@gonzo> perl /usr/lib/cgi-bin/awstats.pl -config=mail -update >/dev/null
Can't open perl script "/usr/lib/cgi-bin/awstats.pl": No such file or directory

The expected awstats.pl is istead found in /usr/lib/cgi-bin/awstats/awstats.pl, I made a softlink to the desired location.

Logrotate:

/etc/cron.daily/logrotate:
error: syslog-ng:65 duplicate log entry for /var/log/mail.log
run-parts: /etc/cron.daily/logrotate exited with return code 1

The installer creates a daily logrotate entry for mail.log, whereas syslog-ng rotates all mail related logfiles weekly. I commented the entry for mail.log and left the other mail.* unchanged.

Regards Felix