IE6 Login form problem

[NikeFootball]

Hello,

My Web Site:
http://www.haydevira.net/forum

Firefox and Ie8
http://i44.tinypic.com/21jvi2a.jpg

Ie6 and Ie7
http://i40.tinypic.com/658r51.jpg

.toplinks form {
	min-width: 220px;
	display:block;
	margin-{vb:stylevar right}: 10px;
	text-align: {vb:stylevar left};
	float: {vb:stylevar right};
	clear: {vb:stylevar left};
        _width:230px;
}

.toplinks .logindetails {
	padding: 0 {vb:stylevar padding};
	text-align: center;
	background: {vb:stylevar navbar_tab_background.backgroundColor};
	-moz-border-radius-bottom{vb:stylevar left}: {vb:stylevar border_radius};
	-webkit-border-bottom-{vb:stylevar left}-radius: {vb:stylevar border_radius};
	-moz-border-radius-bottom{vb:stylevar right}:{vb:stylevar border_radius};
	-webkit-border-bottom-{vb:stylevar right}-radius:{vb:stylevar border_radius};
	height: {vb:stylevar navbar_tab_size.height}px;
}

.toplinks form input {
	margin: 3px 0 0;
	vertical-align: baseline;
	font-size: {vb:math {vb:stylevar font.fontSize}-2}px;
	padding: 1px;
	border: 0;
}

.toplinks form input.default-value {
	color: {vb:stylevar toplinks_form_input};
}

.toplinks .remember {
	margin: -{vb:math {vb:stylevar padding}/3} 0 0 {vb:math {vb:stylevar padding}*2};
	font-size: {vb:math {vb:stylevar font.fontSize}-3}px;
}

.toplinks .remember input {
	vertical-align: baseline;
}