I did this ages ago so will be a bit rusty, all I did from what I remember was add these 2 lines of code to each page that you wanted to use Slim Box on...
<script type="text/javascript" src="js/mootools.js"></script>
<script type="text/javascript" src="js/slimbox.js"></script>
Ensure mootools.js and slimbox.js are in your root directory in a folder called js
Ensure you upload the folder with the slimbox images into the correct directory that it says, root directory I think.
Can't remember if I had to edit a few of the files, think so (read the instructions), if I remember rightly it was only file/folder paths if anything.
Then add the code where the image is to display on the page, for example to link from some text to an image add...
Code:
<a href="/images/image-1.jpg" rel="lightbox" title="my caption">image #1</a>
...or to link from an image such as a thumbnail to the larger image add...
Code:
<a href="/images/image-1.jpg" rel="lightbox" title="my caption"><img src="/images/image-2.jpg"/></a>
I then uploaded all files as above to the server and that's it. It will only run/work on your server not from your local machine.
Don't know what jQuery is/was and never did anything with that. Try as above first, jQuery may just be something that runs on servers, I don't know :icon_dunno:
Hope that helps (probably not)