How can I alphabetize my smilies?

[yumyumcat]

I have them in categories and people love them so much. I have nearly 400! It's no wonder they want them alphabetized. I've seen this done on other forums. Shoot, I see it in my smilie directory in my ACP, but when I open my window for them, they're not alphabetized.

Is there a code for this and if so, where do I place it?

Thanks in advance. Ya'll have been so helpful!