Background image to bottom?

Hello.

For my band site I want the background for my content to continue to the bottom.
Here's my code:

	*{  
		margin:0;  
		padding:0; 
	}
	
	#txbg {
		position:relative;
		background-image:url(BGcontent.png);
		background-repeat:repeat-y;
		width:1060px;
		height:auto;
		text-align:left;
		margin:0 auto;
	}
	
	#text {
		width:720px;
		height:auto;
		margin-left:171px;
		margin-right:171px;
		margin-top:15px;
		margin-bottom:15px;
	}
	
	#OD {
	  color: #FFF;
	  font: 1.1em/1.1 Trebuchet, 'Trebuchet MS', Helvetica, sans-serif;
	  text-decoration:underline;
	}
	
	#OD2 {
	  color:#666;
	  font: 0.7em/1.4 Trebuchet, 'Trebuchet MS', Helvetica, sans-serif;
	  font-weight:bold;
	}
	
	#OS {
	  color: #FFF;
	  font: 1.2em/1.1 Trebuchet, 'Trebuchet MS', Helvetica, sans-serif;
	  font-weight: bold;
	  text-decoration:underline;
	}
	
	a,a:visited {
		color:#7d5636;
		font-weight:bold;
		text-decoration:underline;
	}
	
	#CT {
		  color: #E0E4E7;
  		  font: 0.8em/1.4 Trebuchet, 'Trebuchet MS', Helvetica, sans-serif;
	}
	
	#AV {
		color: #E0E4E7;
		font: 0.8em/1.4 Trebuchet, 'Trebuchet MS', Helvetica, sans-serif;
		font-size:9px;
	}
	
	#header {
		margin-left:156px;
		margin-right:171px;
		width:750px;
		height:185px;
	}
	.content {
		width: 1060px;
		height:auto;
		margin-right: auto;
		margin-left: auto;
	}
	html, body {
		background-color:#FFF;
		/*width: 100%;
		height: 100%;*/
		margin-top: 0px;
		padding-top: 0px;
		top: 0px;
		margin-left: 0px;
		padding-left: 0px;
		left: 0px;
		background-image: url("bgoverall2.gif"); 
		background-attachment: fixed;
		background-position:top center;
	}

Code (markup):

I'd like to make the bgcontent.png in #txbg continue to the bottom of the page.

Look at my site here: www.khaktus.no


Thanks,
Marius.