You have to edit the theme itself. In other words you must locate the Daxexit.exe utility which comes with OCD. Daxedit will allow you to edit the theme of your choice, for instance Crisp.dax.

In Daxedit you'll find that the theme is split into several tabs. You're primarily interested in the Start , Album and Track tabs. That's where you want to search for the album title, track title and artist name.

The track title tag looks like this:<!--[tracktitle/]-->.
You need to wrap the track title tag in a set of <pre></pre> tags, like this:
<pre><!--[tracktitle/]--></pre>.

If this makes no sense to you, send me your email address and I'll return some screen shots to help you along.