why is my domain mapping not working

I have a dedicated IP address. I installed the domain mapping plug-in following the instructions exactly. The domain is registered with Go Daddy and the site is hosted with blue host.

The subdomain address is blainesmedia.selkirkwebhosting.com and the domain name is blainesmedia.com

I changed the A record to my dedicated IP address and changed the name servers to point to blue host.

The admin panel works for the subdomain but when I visit the site either as the subdomain or the domain I just receive a page not found.

it has been several hours since i changed record an nameserver

Any suggestions would be greatly appreciated?

Take care