Those are custom bbcodes which you can add to your site using the Custom BB Codes menu in the admincp. You just have to figure out the replacement html for the code you want, which you can probably do by looking at the html source of the page you linked above. For example, for floatright the replacement would be:
Code:
<span style="float:right">{param}</span>
which I got by viewing the source and replacing the text with {param}.
You might also be able to find some replacement codes by searching in the mod forums.