the scrolling window will display all auctions in your store unless told otherwise.
if you are placing an auction you don't want to appear in the scrolling window simply...
Click on the "store" tab
Scroll down a bit until you see the subheading "manage"
click on "store items"
In here you can check the boxes of the items you don't want to appear in the scrolling window and click on "make hidden"
Scrolling Gallery will then ignore those auctions.
The only other way to remove the scrolling gallery from your auctions is to edit them via ebay and look in the html section for "<!--ASW--><!--version 1.0-->" delete that and all text after it until you come to " <!--ASW-->" (delete the <!--ASW--> too) this will remove the window
This text is easily located at the very start of your auction if you choose to have the gallery before the description, or at the very end if you choose to have the gallery after the description.