Could someone please step me through how to make it work please :: Lightbox 2

Could someone please step me through how to make it work please :: Lightbox 2

I don't know how to code. I do know css/html. I do want a photo viewer and LB2 is perfect for me bit I don't know how to make it work and I have tried very hard. < http://lokeshdhakar.com/projects/lightbox2/>

I've followed the steps by placing the code in a html blank page. However,  I'm missing something and it might be this part: lightbox.js will add listeners to elements with attribute rel="lightbox" and once you click it it shows images in popup, from link's href attribute. I Do not understand this part at all. Please can you explain STEP - BY - STEP - how I do what it is telling me here. It might be where I'm going wrong. Thanks.