Aardvark Topsites PHP Manual
Ranks On Buttons
Want to have the little rank numbers on your buttons? First make them, and name them 1.png, 2.png, etc. all the way up to whatever number you decided in the settings part of the admin. Of course, you can always change it. Then make a standard one for lower ranked sites, name it whatever you set in the admin. Now upload them to the directory you specified in the settins part of the admin and you're ready to go.
Don't want those damned rank numbers? Just turn them off in the settings part of the admin.
If, for some reason, you want a format besides png, you can change it to something else (gif, jpg, etc.) in the settings part of the admin.
If your list is running too slow and using too much of your server's CPU, then try turning off the ranks on buttons.