You just need to host with 'ol MetalAges and be done with it..... </end spam>
Sorry, couldn't resist
It's nothing wrong with your domain name itself, but looks to me like the main html page it needs to find when www.seempieces.com is typed in ("index.html, etc" ) is possibly missing or messed up.
I could prolly host it if it becomes a problem.... I got infinite amount of space on my server but it is in Finland and I'd have to do the updating myself.
Yes, the website has been down for a while, we are having some problems with the host company and the domainname which is still on the namezero nameservers. We are busy trying to fix everything asap.