spec me a photo gallery program

[QlimaxUK]

I want to create a photo gallery for my site, here is what I have made for now with some free software I found but is there a better free program for this? maybe one that could give me a darker background?

http://www.kingwebs.pwp.blueyonder.co.uk/TECH/index.html

 

[asim18]

http://www.simpleviewer.net/simpleviewer/