If you know php, or any other web programming lang, it is easy. Like list all image files in a folder, set number of images per page, set next / prev links.
But there may be ready-made scripts for your requirements. Try the simplest one.
Do you want to use Highslide for a personal website, a school site, your family's photo album or a non-profit organisation? Then you don't need the author's permission, just go on and use Highslide.
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★ Want to start your Website, No worries - here is how ★
http://www.thinkdigit.com/forum/showthread.php?t=66717