Hey, sorry for that, really not sure what Mohammad was trying to do with the border color, maybe he misunderstood the problem, but here you go:
2)
nav .menu ul.sub-menu li > a, #top-bar nav .menu ul li > a {
color: #666666!important;
}
will change the color of the submenu item links
3)
nav .menu ul li.current-menu-ancestor > a, nav .menu ul li.current-menu-item > a {
color: white!important;
}
will change the color of the active link
Let me know if that solved it!