1. Add this current web page as a favorite or bookmark in your browser and rename the title to something like "Hilite My MSN Space".
2. Save the favorite or bookmark in a place where it will show up in your browser's toolbar (Example: Internet Explorer has a folder called "Links" under "Favorites" that will place the link as a button in your toolbar -- toolbar must be enabled).  Or, just save it to your preferred location and remember how to get to it.
3. Now right-click the link's button on your toolbar, or right-click the favorite / bookmark and select "Properties".
4. Remove the current URL and replace it with the code below:

javascript:bg=prompt('Link%20Background%20Color:','lime');fg=prompt('Link%20Color:','navy');spc=prompt('MSN%20Space:','eswanson');a=document.getElementsByTagName('a');for(i=0;i<a.length;i++){if(a[i].href.indexOf(spc)>=0){s=a[i].style;void(s.backgroundColor=bg);void(s.color=fg);void(s.fontSize='24pt');}}

5. Save it (ignoring the warning about code being in your url -- nothing malicious here!) and then try it out on a webpage that you know has the space you are looking for.

*FYI: You can actually use this tool to highlight any link based on some value in the url.  For example, I could search for "spaces.com" in all of the urls on a page, etc.  Also, you'll notice that you can change the default values in the code (like 'navy') by simply editing them in the code, but be aware that this is "url-encoded" javascript, so you must know what you're doing.