Hey Lanes8, i don't remember exactly but, here is a link to my XML file with all the icons, sounds, etc.
@LANES8: Hey, friend! If I remember correctly, long ago we had already told about this icon.
It should be...
-For icon name: Saved Data Minis (or whatever they call it now... but it perfectly works for me just as it is)
-For icon ID: icon_savedata_minis
You simply have to launch the "Icon Manager" tool from PS3 Theme Builder main menu