I have an awstats package that's set up for dynamic updating. It's at:
http://www.scottdayman.com/awstatspackage.zip

This will let you look at previous months' stats like your old one did.

Go through and modify the appropriate files. (awstats.conf and index.html)
Your crontab entry should look something like:
59 23 * * * /usr/bin/perl /home/USER/DOMAIN.COM/statistics/awstats.pl -config=DOMAIN.COM -update > /dev/null

Make sure it runs just before midnight to use that day's log files.


-Scott