I found a great tutorial explaining an easy way to move a website from one cpanel host to another:
How-to: Migrate Accounts From One Server To Another (cPanel) - The Planet Forums
You will need root access on your new server. For that I use PuTTY, which you can download for free at:
PuTTY: a free telnet/ssh client
Here is the tutorial:
Requirements:
-cPanel on both servers
-WHM access on the new server (one that the accounts are being moved to)
-root access on the new server
Throughout the instructions I will refer to the server your are transfering the accounts from as the "old server", and the server to are transfering the accounts to as the "new server".
Instructions:
1. Log into WHM of your new server and create a new account called "restore", or anything you like for that matter. Remember the FTP address, username ('restore', in this example), and account password. We will need these for later.
2. Log into the cPanel account you are wanting to transfer on the old server.
3. Click on "Backup >> Generate/Download a Full Backup".
4. Once here, select the backup destination to be "Remote FTP Server".
5. Enter your email address for verification, follwed by all of the FTP account information for "restore", which we created on the new server.
-Remote Server: new server's address
-Remote User: restore
-Remote Password: restore's password
-Port: 21
Then, click "Generate Backup". This may take some time to backup the files, depending on how large the account is. You should receive an email provided in the above info once it is complete.
6. Now, log into SSH on your new server.
7. Type in the following commands:
cd /home/restore/public_html
ls
After running the list command above (ls), you should see the tar file of the account on the old server. This means that you have successfully sent the file via FTP to your new server.
8. Now move the tar file to your new server's /home directory with the following command:
mv tar_file_name /home
9. Now, log into WHM on your new server and navigate to "Backup >> Restore a Full Backup/cpmove file"
Once here, you should see the old account's username under "Possible cpmove archives found:".
If you do not, log back into SSH and be sure that the account's tar file has been moved into /home.
10. Type in the account name in the text field in WHM, which is proceeded by "Enter the username for the account you wish to restore:".
11. Click "Restore".
Transferring Website from One CPanel Host to Another
