Disklavier

I'm new to the group...so please bear with me...

My Mark IV has been sitting idle for about 18 months.  Today I decided
to hook it up to the internet but I can't find the manual (even
online!) that talks about how to do this.  Here's what I've done on my
own:

1) connected a monitor
2) configured a Wireless-G game adaptor and plugged it in.

Now what?  What is the interface to use a browser?  Do you need a PC?
 And if so, where does it plug in?  Can someone point me to online
documentation?  I tried Yamaha's site but couldn't find what I needed.

Sorry to ask such a silly question but this is a little challenging
without the documentation at hand.  

Thanks in advance,

Lynda