Block/box not expanding with content [fixed]

[Babo]

Update: Fixed it by removing unnecessary height values

Block refusing to expand vertically with more content and just overflows. Don't know why it's happening. Please help.

The problem I think area is under
#maincontentbox

Tried height:auto; which works for the banner/city photo image but just messes up things for the lower portion. When I change the height say, 500px everything moves according to position min-height didn't work either.

/* --- General Settings ---*/
*
{
	margin:0px;
	padding:0px;
}

body
{
	background-color: #000916;
	margin-top:0;
}	

html,body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset
{
	border:0px;
	color:#fff;
	font-size:11px;
	font-family:Arial, Helvetica, sans-serif;
}

/* --- Layout --- */
#maincontainer
{
	background-color:#000916;
	margin:0 auto;
	text-align:left;
	height:auto;
	width:1024px;
}
#maincontainer2
{
	height:auto;
	width:1024px;
}
#headerbox
{
	background-image:url(../images/tfh_header_bg.png);
	background-repeat:no-repeat;
	height:173px;
	width:1024px;
}
#logobox
{
	height:173px;
	width:270px;
	float:left;

}
#searchlangbox
{
	height:143px;
	width:754px;
	float:left;
}
#menubox
{
	height:30px;
	width:754px;
	float:left;
}
#bannerbox
{
	height:auto;
	width:1024px;
}
#maincontentbox
{
	background-image:url(../images/tfh_grad_border_3px.png);
	background-position:right top;
	background-repeat:no-repeat;
	height:500px;
	width:1024px;
}	
#searchcontainer
{
	height:355px;
	width:454px;
	float:left;
}
#searchbanner
{
	height:22px;
	width:454px;
	float:left;
	margin-left:22px;
	margin-top:25px;
}
#searchbox
{
	
	background-image:url(../images/search_bg.png);
	height:255px;
	width:410px;
	float:none;
	margin-top:66px;
	margin-left:22px;
	margin-right:22px;
}
#searchboxA
{
	width:208px;
	height:255px;
	float:left;
}
#searchboxB
{
	width:198px;
	height:255px;
	float:right;
}
#searchspace
{
	height:16px;
	width:198px;
	float:left;
	margin-left:22px;
}
#contentbox
{
	background-image:url(../images/tfh_vert_border.png);
	background-position:left;
	background-repeat:no-repeat;
	height:355px;
	width:570px;
	float:right;
}
#contentbanner
{
	height:22px;
	width:548px;
	float:left;
	margin-left:22px;
	margin-top:25px;
}
#contentspace
{
	height:16px;
	width:548px;
	float:left;
	margin-left:22px;
}
#contentbody
{
	height:285px;
	width:526px;
	float:left;
	margin-left:22px;
	margin-right:22px;
}
#bottomnav
{
	background-image:url(../images/tfh_grad_border.png);
	background-position:right top;
	background-repeat:no-repeat;
	height:40px;
	width:1024px;
}