Demo
The easiest way to know if 4images is what you are looking for is to just try it out. Feel free to explore the Frontend and the Admin Control Panel via the following links.
Frontend Demo
Admin Control Panel Demo
(via opensourcecms.com)
Screenshots
Below you can see some screenshots showing 4images in action.
Frontend
Home Page
Category View
Image Detail
Search Results
Top Images
Admin Control Panel
Control Panel Home
Configuration
Add Users
Add Images
Thumbnailer