I downloaded Jon designs javascript smooth gallery-which I found a link to while searching for gallery for my website... I have gone over and over what I am doing, but I cant get it to work as a gallery, I have no idea what I am doing wrong and its probably something simple and staring me in the face. I have very limited knowledge....

What I have done:
I unzipped the files and then uploaded them to my Cpanel
In My .css file I added

#myGallery
{
width: 490px !important;
height: 327px !important;
} 
useThumbGenerator: true 
<script type="text/javascript">
function startGallery() {
var myGallery = new gallery($('myGallery'), {
timed: false,
showArrows: true,
showCarousel: false,
embedLinks: false
});
}
window.addEvent('domready', startGallery);
</script>

The rest I put in my HTML page, I only added two pictures to see how it worked... Its uploaded to my blog part of the site, which I am using for testing... http://rachelclarephotography.com/blog.html So anyone who can explain in simple terms where I am going wrong would be appreciated!!!

window.addEvent is not a native JavaScript function. This gallery requires the Mootools library in order to work. You've linked to it, but there isn't actually a script located where you linked. I think you probably assumed that what you downloaded would have everything you need, while the author assumed that you knew about Mootools and where to get it: http://mootools.net/

I downloaded MooTools 1.2.4
I put it in the public_html folder in Cpanel but nothings changed, am I still missing a step?

IS this the link you were talking about?
}
window.addEvent('domready', startGallery);
</script>
Do I nreed to change the name of the link? I called the mootools download mootools-1.2.4-core-nc.js is this the correct thing to do?

Thanks for your help so far.

By "link" I meant the script tag at the top:

<script src="scripts/mootools.v1.11.js" type="text/javascript"></script>

The src attribute needs to be pointed at the correct location. If it is in the same folder as the other file, and the name of the file you uploaded is mootools-1.2.4-core-nc.js, all you need to do is edit the above to say:

<script src="scripts/mootools-1.2.4-core-nc.js" type="text/javascript"></script>

Ok thanks, another silly question,,,,(becuase its not working)

When you have a script tag, or anyother tag, is the part that says scripts/mootools referring to the file I uploaded and the place I uploaded too, so in this case mootools is the file and scripts is the folder its in?

<script src="scripts/mootools-1.2.4-core-nc.js"

you should *always* test your scripts locally (even client side such as javascripts) before uploading them to a live server. That will guarantee they will work the first time when going live with them.