By Garuda.Wooooodum 2009-01-12 07:22:10
This is because on the Playonline Fanzone it's referred to as "Commodore Trews", whereas the item itself, and on this site, is "Commodore Culottes" - This means they're not matching up so FFXIAH doesn't acknowledge their presence, since FFXIAH is looking for "Culottes" and it's not there. Only reason it's appearing as a blank is because "Commodore Trews" isn't the database, go ahead and search for them and see what happens.
It's not just you, don't worry- happens to me as well!