It is pretty easy to setup if I remember. It has been awhile. Just follow the instructions that comes with it. Connect an ethernet cable between it and your router to do the intial setup.
If you have problems, just send me an email.
Walt2 is correct. You will need to setup a dynamic IP address and port forwarding on your router.
You will have to do that with any IP camera you buy.
From their website:
"Try a free trial of DynDNS Pro — a great opportunity for users to test out one of our most popular services. You may keep one hostname free of charge for trying Pro
This site will help you with port forwarding:http://portforward.com/
The picture is not bad and the IRs work great for night vision.