Fences Pro

Fences Pro allows you to keep your desktop organized and clean. Fences Pro includes features as sorting, automatic organization, more visual tweaks, and automatic snapshot taking to ensure nothing ever happens to your desktop's layout.
Fences Pro includes the ability to sort icons within fences, by any of the usual categories such as name, type and date modified.

Additional options unique to Fences, it can also sort your icons by the date added to the fence, or the number of times used, keeping your most accessed items in front.