Try it this way, it should work. Just a little spacing was off and that can effect it.
<script>
function name_across_board(){
//Created by Agent Moose (smcodes.smfforfree3.com)
var vfour = new Array()
vfour[vfour.length] = ["Agent Moose","","orange","<b>"]
vfour[vfour.length] = ["Drowning","Drowning","Red","<img src='http://img230.imageshack.us/img230/8688/admintj3.gif' />"]
vfour[vfour.length] = ["r i c h","R i c h","orange","<img src='http://i152.photobucket.com/albums/s163/dragonowner/mod.gif'/>"]
vfour[vfour.length] = ["Bane","Bane","orange","<img src='http://i152.photobucket.com/albums/s163/dragonowner/mod.gif'/>"]
vfour[vfour.length] = ["xxcutiepkzxx","xxcutiepkzxx","red","<img src='http://i29.tinypic.com/d7fb8.jpg'/>"]
for(f=0;f<vfour.length;f++){
$("a[href*='u=']").each(function() {
if(this.innerHTML.match(vfour[f][0])){
this.innerHTML = this.innerHTML.replace(vfour[f][0],"<font color='" + vfour[f][2] + "'>" + vfour[f][3] + vfour[f][(vfour[f][1] != "" ? 1 : 0)] + "</font>");
};});};}
name_across_board();
</script>