Are you running the condition on the player? Terminals don't have inventories, so http://geck.gamesas.com/index.php/GetItemCount won't work on them - you have to specify that it runs on the player.
On a less important note, it'd be better to use "
!= 0" for this condition, just in case the player somehow manages to get more than one instance of the item in their inventory.
Cipscis