That would be the ip of the roku or my computer?
How do I figure out the ip of the roku?
I can't get the users folder to work in command prompt because when I type dir/p it says it doesn't exist.
The IP address of the Roku. You should be able to browse to your router (on Linksys routers anyway) and view all the hosts - and their IPs - that are on your LAN.
A more brute force way would be to ping the addresses that are close to that of the host computer. As an example, if the laptop you are on is 192.168.102, other hosts are probably right in line - 103, 104, 105, etc. -with that.
Try telnet 192.168.1.10x 8080 until you get the indication you have hit the Roku.