I understand that you have in mind to upgrade to the Slingbox PRO HD. However, you have some questions about the set up process.
First, we recommend you to take advantage of the Slingbox Upgrade Program. This option allows you to get a $50 off when getting your new Slingbox PRO HD. This link will provide you with further details.
Once you get your new Slingbox PRO HD, you need to hook it up to your home router and TV source in order to set it up for Internet Viewing.
The following link will allow you to get all the information about the Slingbox and how to set it up.
Finally, you only need to visit our website at www.slingbox.com whenever you want to get the remote connection using a desktop or laptop computer. First, you need to log in to your Sling Account and then, click on the "Watch" tab at the top of the web page.