In the Admin side, under Management Menu got to Gallery Manager
for Thumbnail view, create a main category like "photo gallery" the create subcategories
when creating the subcategories, add a picture and that is the picture that it will show up like
http://gatorwraps.com/gallery.php
Make sure you make the subcategory a child under the main category like ⌠photo gallery■ by default it will get under root.
For the gallery options like size and lightbox effect
Go to general settings,
Image gallery options
You can change thumbnail height, width, chose from list view or List,Dropdown
And you can turn the Lighbox effect on and off