inthe Gallery.xml file many values in there can change the apperance, just use notepad or wordpad.
<simpleviewerGallery maxImageHeight="1024" maxImageWidth="1024" textColor="0xFFFFFF" frameColor="0xffffff" frameWidth="0" stagePadding="5" thumbnailColumns="10" thumbnailRows="1" navPosition="top" title="Calgary Motorcycle Show - Courtesy of Rockstar Energy Drink" enableRightClickOpen="false" backgroundImagePath="" thumbPath="thumbnails/" imagePath="">
These are the settings for those galleries, you could even get rid of the thumbs by selecting 0 for colums, and 0 for rows
frameWidth="0" *white boarder around photo*
stagePadding="5" *spacing between thumbnailes*
thumbnailColumns="10" *Colums of thumbs*
thumbnailRows="1" *Rows f THumbs*
navPosition="top" *Position of thumbs*
title="Calgary Motorcycle Show - Courtesy of Rockstar Energy Drink" *Shows above thumbs*
enableRightClickOpen="false" *Do you want your images to be downloadable?*
backgroundImagePath="" * Background photo if you want*
Additionally, depending on your hosting account, if you want to disable directory listings, put a dummy index.html file in the images/thumbs folders so that is loaded and not your list of files