Installation of Terminal Services is easy to implement but if you don't do this so often then it's ok to come back to a simple procedure or search Microsoft Support website for assistance.

You need to enable and activate a Terminal Services "License Server" and the install the TS CALS.

Here some useful links for you to accomplish this tasks:

• How to Activate a Terminal Services License Server and Install CALs Over the Internet
• Terminal Services Licensing service discovery

You can transfer your TS CAL from one server to another server. In short, you can consolidate your TS CALS and let other Terminal Service connect to this main TS License Server.

Here's the step by step procedure to accomplish this task:
How to transfer Terminal Services CAL from one client computer to another

Another useful networking tool to share:
Zolved.com FREE remote management tool. It is safe to use, you can share your desktop to view only or give full control to your geek friend to assist you resolve an issue. To initiate the connection, your friend need to have your session id from you. Just like giving the door key to your house.

netdom query fsmo - to identify the role of a domain controller.

After sharing your desktop, don't forget to terminate the connection. Or if you're not sure about, just do a quick reboot.