You can rearrange the order of images within svBuilder-Pro via the 'Images -> Sort' options from the drop-down menu at the top. You can sort images by file name, by file date or reverse the order.
You can also drag-and-drop images into a new order on the 'Images' tab. It is also possible to Ctrl+click a selection of images or Shift+click a block of images before dragging-and-dropping.
If your images are displayed upside down, this might be due to incorrect EXIF orientation flags embedded within your images.
Try rotating them with the rotate button (arrow icon next to the delete button) in the 'Images' tab of svBuilder-Pro.
If this does not help, please upload one of your images (which appears upside down) somewhere and post a download link so that I can take a look.
SimpleViewer Support Team.