Shepard's locker in ME1 on PS3 (ME Trilogy)

Either I'm misunderstanding something, or I've encountered a bug in ME 1 on the PS3.  Is Shepard's locker supposed to be used to set the character's weapon loadout, or is that done somewhere else?  Because, it you're supposed to use the locker, that isn't working.

Shepard's locker is right around the corner from the med bay entrance, while the lockers for all the squadmates are down on the hangar level.  For the squadmates, accessing their lockers brings up a selection screen where you can choose which weapons/armor they're outfitted with, apply mods, or convert the items to omni-gel.  However, when I access Shepard's locker, it's like opening a container on a mission -- there are just a few items listed and my only choices are to convert an individual item to omni-gel or "take all items".  Once I've made my choices, the locker door changes in appearance and it's no longer possible to access the locker.

Are Shepard's weapons/armor selections accessed somewhere else?  At the moment I'm stuck with the character's initial loadout, and am getting my butt kicked as I start getting into the more difficult missions.