how do you display a background image

[elad]

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i fixed this, relative url problem

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I want to display a background image for my page with photopost

i am not using vb, and have tried editing the stylesheet i am using
putting

body
{
background: #000000 url(images/bg.jpg);
color: #cccccc;
}

and this was no luck
is this the only way,
is this the wrong way?