The link that the other dude posted above me, is really out dated, its never been used in ages. Since sony has up'ed it's security and file encryption. There is no way your going to view your ps3's contents using that method, unless it gets updated. I would suggest you just wait till gitbrew releases their exploit, and if they don't release their exploit, then it's time for a new ps3.
Could you post a screenie of what you can see?