Lxadmin treat Awstats in different way.
The individual configuration file of particular domain or site is located
These files are rebuild ever time the batch file update the Awstats report.
Lxadmin uses a template file here.
If you want to change config of the Awstats file, you have to change the template file.
And also the Awstats program files are saved here.
I spend about two days to know above infomation.
I hope this howto can help you.