Login to http://x10hosting.com/control/login.php with forums username and password
then Click on Hosting.
If a box like this is appearing then Click on Cancel
Then go to http://x10hosting.com/signup.php and signup again.
x10 Sophmore, x10 lieutenant, x10 Elder and x10spammer etc are just user titles not forums groups. There requirements are 100, 250, 500, 1000 respectively.
The Link gsonline gave you is correct. Forums groups are requirements are written there.
Point your domain to x10hosting Name Servers
ns1.x10hosting.com
ns2.x10hosting.com
Then Go to cPanel and add your new domain to "Parked Domains or Addon Domains" Options
you did not reply in last 48 hours. So I am going to close this thread. Feel free to create a new thread if this problem is not solved yet.
***Thread Closed***