When an Item sells out or is disabled the I tem is still showing in the New products for the month listing. New products is still showing products that are not new say this month may. How can I fix this?

The Item in question is the O Gauge NH (Eastwind) EP-3 Electric Engine PS 2.0

Please help!!!

http://www.justrains.com/webstore

Zen Cart 1.38A
Yes Once from 1.38 to 1.38A
Shipping insurance and map pricing
I fixed the shipping so I can force shipping on any item with an option on the product page
Yes
No
Yes
Everything works perfectly with the store shipping billing everything works.