Smart Interiors is a clean simple elegant Drupal 6 Theme. Home Page Gallery can be created through blocks.
Features
1. Simple and Easy to use, no need to install any modules for home page gallery.
2. Home Page Galleryr Can Be Managed From Admin, Just Need to Create New Blocks and Insert Image Path and Assign It To Header Region, Each Image Need to Have One Separate Block.
3. Cross Browser Combatability
4. Help Document
credit : http://devkick.com/lab/galleria/