Enquiry abt Date stamp after the access log name

Question

Hi anyone could explain this date stamp of the following
error_log.1097539200- [Tue Oct 12 08:00:08 2004]
access_log.1097539200 - [12/Oct/2004:08:00:23 +0800]
error_log.1097625600 - [Wed Oct 13 08:00:04 2004]
access_log.1097625600 - [13/Oct/2004:08:00:23 +0800]
i could not figure out the date stamp behind each log file
i saw from the example in the documents it should be something like this error_log.20041310 which represents 13 oct 2004 but some how the above log extension is diff

Answer 1

Thanks for your help now and in the prior post you sent me. I tried and was unable to successfully implement option 1. (See error output below) and I was hoping to not change the way the suffix is calculated in conf files since I read that SA (or system updates) can stomp on those changes.
Error after putting wildcard character logfile path:
sudo perl awstats.pl -update -config=www.myserver.org
Create/Update database for config "./awstats.www.myserver.org.conf" by AWStats version 6.6 (build 1.887)
From data in log file "/var/log/httpd/access_log*"...
Error: Couldn't open server log file "/var/log/httpd/access_log*" : No such file or directory
Setup ('./awstats.www.myserver.org.conf' file, web server or permissions) may be wrong.
Check config file, permissions and AWStats documentation (in 'docs' directory).