The Inventory messages will display only if the inventory quantity is less than the value placed in the INV LIMIT field ( in Catalog Setup of storeadmin)
To keep the number of items you have in inventory from showing on the product pages set the number in the INV LIMIT field to 0
A higher number then you have in inventory will insure that the message always shows.
- If you leave it to a higher number than what you have in inventory then the message will always show.
- If you set it to 3 for example then the message will show when you are down to 3 items.
- If you set it to zero the message will never show.