#header #search {position: relative;float: right;top:9px;right:0px;margin-bottom: 9px;width: 225px;z-index: 15;}замените его на
#header #search {position: relative;float: right;top: 116px;right: 233px;margin-bottom: 9px;width: 225px;z-index: 15;}
там же найдите код
#header #support {position: relative;float: right;top: 9px;margin-right: 11px;z-index: 30;width: 200px;}замените его на
#header #support {position: relative;float: right;top: 116px;margin-right: 11px;z-index: 30;width: 200px;color: black;right: 243px;}
найдите код
#header #support a, #header #support a:hover{color: #fff;text-decoration: none;}замените его на
#header #support a, #header #support a:hover{color: #000;text-decoration: none;}