Fine tuning Directadmin awstats installation

I have just installed awstats with the Directadmin recommended configuration.
My first stats report is here http://www.virtualorbis.com/stats/
however I would like to have it and others reports look like this
http://www.cholonautas.edu.pe/awstats
(with reverse dns enabled at least)

What should I change?

What is the file the .conf file used to generate these awstats reports?
http://www.virtualorbis.com/awstats

I am using the awstats installation integrated in Directadmin.

I managed to fix/enable the reverse dns setting, but I still can't see the historic (previous months reports). What else do you think I should change?