Creating Internal Catalog

Hi - I'm trying to create an Internal Catalog for the 1st time in R12 (version 12.1.3).

1.     I've created a new purchasing category

2.     I've created the Blanket Purchase Agreement for a particular supplier and add the necessary lines using this new category and approve (purchasing superuser/buyer work centre)

3.     I've created the Content Zone (Iproc Catalog administration)

4.     I've created the Store (Iproc Catalog administration)

However, when I log into Iproc to use this new store, even though the new store is showing, there are no items to select from the store.

5.     I've gone back to my Blanket purchase Agreement and add a previously created category from 11i and update my content zone and my store and for some reason, this item is now showing in my store but not the ones from the newly created category.