alphabetic order listing

Hello
I am taking over our eshop that someone else has setup.
On the site like
http://www.petelements.hk/%E7%8B%97%E7% ... 5%E7%B3%A7

There are a group of brands listed but not in alphabetical order. But our user want it to be in alphabetical order. I tried to search under our admin section where this is being setup. I failed to find some relevant setting that determined the layout of this page. Can someone enlighten me where this group of text was configured? Maybe it is in some modules.