A friend asked me to change the colors on her blog sidebars (www.bellytickles.com/blog) and they look just right in firefox, but in IE the calendar numbers aren't changing on hover and the pages links are still default gray. Where am going wrong on this? Thanks!

I don't see the gray links on IE, please tell where exactly. The hover issue probably needs a !important where you specified the hover state

........... a:hover {
color: #123456 !important;
}