what are you using to edit the plist??
you do realize it must be done with the xcode plist editor because the values in the plist are some wacky format and not just plain hex...
also make sure your looking at the whole lspci command because mine had about 3 pcmcia things in there....the bus controller, the card reader portion and firewire...all are marked with xx21 but only one is the actually pcmcia slot...
sorry for my english !
i edit with Property List Editor 2.1 (is good this ?)
i use 3 different version of linux live cd and i have 3 different result (this is a problem)
the command is lspci -v
i look for CardBus bridge (is the only with 2 MW and 2 I/O number)
nobody result work !!
which version of linux is good ?