IMAGE HOVER code, does not work properly. Options

[hyunjin90]

CODE

<style type="text/css"> a:link img {filter:gray;} a:visited img {filter:gray;} a:hover img {filter:none;} </style>

that's the code i have on my myspace to make my images black and white. when you hover over them, they turn to color.
the problem is that this code works on everything except the profile image.
i want it to work on everything AND the profile image as well.
but it only works on everything BUT the profile image.
how do i change it so it works on EVERYTHING?

thanks.