Exact directions can't be posted here, because those aren't our mods, and it's not nice to post code for someone else's mod.
If you want help, it's best to get it from the authors themselves.
For all intents and purposes, any modifying you do to the actual hacks is pretty much on your own. You just have to know HTML, mostly. Look at the source to the page you mentioned, figure out how he did it, and apply it to your own board. If you don't know HTML, you're up a creek anyway, around here...
---Skorpion