Hi Jasmine,
The listing information displayed on your "Active Listings" page is update approximately every 6 hours. Once the price of an item is updated on your "Active Listings" page, it will then be updated on your scrolling gallery the next time it refreshes, which it does about every 4 hours.
Any additional questions or concerns? Please file a support request using the appropriate link on our help page: http://www.auctiva.com/free-auction-software-help/help.aspx
-Mike