I have been a little mean though, it tracks the person using regex recognition. That means that you need to for example specify a part of his signature (something that not many others use) to identify his post -then the script will highlight it as a MVP or a custom RGB color if you specify one. You edit this at line 32 ("if(ks.match(/Guide to Macros\:/g)) {").

My signature contains "Guide to Macros:" so that is what I track myself with. Remember that you need to "escape" the \ / _ " or ' using the "\" in-front of the char. Like my "Guide to Macros:" I need to make it into "Guide to Macros\:" for it to work. :)

Oh yeah and one final thing, to use this you need Greasemonkey (for people that clicked the link in my signature):
-> You can get Greasemonkey here: http://addons.mozilla.org/en-US/firefox/addon/748 - yes you do need Firefox, hehe.