Here's how to find out which server your site is on:
Go to http://www.dnsstuff.com/ , do a ping to your domain name (3d one in right colume), you will then see which IP address your site is on.
If your site is on IP between 203.175.163.74 - 203.175.163.78, your site is on Silver Server.
If your site is on IP between 203.175.163.98 - 203.175.163.102, your site is on Gold Server.
If your site is on IP between 203.175.163.82 - 203.175.163.86, your site is on Platinum Server.
If your site is on IP between 203.175.163.178 - 203.175.163.182, your site is on Tina Server.
If your site is on IP between 70.84.42.132 - 70.84.42.142, your site is on Ulysses Server.
