Changing Background Image - Background just turns white!

[GraceSlick]

Hey All,

My basic site I am slowly working on :) http://www.thenaughtygiftstore.com

I recently purchased a Magazine theme for it and am having fun (Albeit Frustrating) time getting it to look how I want. I appreciate its a slow process for newbies but learning is good for you!

So, I'll come to the point: I want to customise my themes background and have come unstuck. As you know the Magazine background is grey and I have found a nice image background that I want to replace it with.

I have followed other peoples advice on the net and I found them relatively simple to follow - but the end results just shows me a blank white background and not the image I am looking for. I am not sure what else to do and I dont want to give up.

So, heres what I did:

I downloaded the image I want to use from a site (It's free) to my desk top. I then unzipped it
I opened my FTP and transfered that gif image to: wp-content/themes/default/images ---> Uploaded.

So then I thought that it was correct to go to the editor> css style sheet and then insert the name of the file of the new image I want into this piece of code:

body {
background: #EBEBEB url(themes/default/fuchsia.gif) top center repeat-y;
color: #333333;
font-size: 12px;
font-family: Arial, Tahoma, Verdana;
margin: 0px auto 0px;
padding: 0px;
}

I am doing something blatantly wrong - It doesnt change it but just makes the background blank white?

Any help to get this image for my background will be very much appeciated!

Thank you

Callie