On my i-mate SP5m it's here:
My list looks like this:
This list is the order they show up on the screen as well. So, Messaging is in the #1 slot (uppermost left icon) with #2 being Calendar in the middle of the top row, and #3 Contacts is the uppermost right and so on.
I mention that 'cuz if I remember right, the MRU list shows up in reverse order - at least it did on my MPx220. The MRU list that shows up in the registry of my SP5m has nothing to do with what shows up on the homescreen. I think the difference is due to the wm5 OS.
Devices: T-Mobile MDA (Cingular SIM), i-mate SP5m (sitting in a drawer at the moment while I attempt to migrate to PPC permanently), Cingular 3125 (unlocked and in use on T-Mobile), Motorola MPx220 (retired), Motorola MPx200 (retired)
Accessories: Plantronics Explorer 330 & 2G Patriot Micro-SD (use w/MDA), Kingston 2G mini-SD used in SP5m, Plantronics Discovery 640 & 2G San Disk micro-SD (use w/3125), Jabra A210 BT adapter + Motorola HS805 (retired)