You need a shell access and you can do it yourself .
Code:
ln -s /home/username/tmp/webalizer /home/username/public_html/stat
This will create symlink to the webalizer pages and once done yourdomain.com/stat/ will show the webalizer .
If you dont have a shell access, put that same command through a temporary cron job from cpanel, set up to run once then delete it.
hope this helps ...