Hi IOr1
Style changes alone do not affect the position of the SG.
This thread is nearly a year old and I notice now that following :-
Store tab -> Store Window -> Edit scrolling gallery
the options have now changed since March 2008.
In addition you now select the tab marked "Edit Text and Placement". Looking here I see mine selected as "Place below Description" which is what I set the placement to over a year ago.
What does yours show ?
Finally don't forget to click on the blue 'Save' button at the bottom of the page before moving on.