Okay..well..this brings me back to the age old question. Is WMP updated? IE and WMP TRY and operate seamlessly, so if there is a problem with one, there is gonna be a problem with the other.
You necessarily wouldnt have to uninstall the current IE, just try downloading it from Microsoft. I have never tried it, so I am not sure that it will work. But I don't believe that it would be a problem.
However, if you want to uninstall the old IE, just go to
Control Panel
Add or Remove Programs..
And along the side, click on "Add/Remove Windows Components"
Find IE
Uncheck it