How do you thin client ubuntu?

Well, I have a computer running ubuntu 10.04 that I want to use as a server for a sun ray 1g thin client. If I can get it to work with your help I will get another client. I have a user set up for the thin client named test with the password as test. The thin client is hooked up to my network and has the ip 192.168.1.110 and when I turn it on the little box on the screen says the ip and that it found one server but then it fails and has a yellow message at the bottom that it cant find a server. When I open terminal server client in ubuntu on my server computer and type in the ip address, user name, and password it gets an error. What else do I need? it says domain, client hostname, and protocol file (they are all empty) Do I need to install any other software? Thin client manager gives me nothing since I cant get connected. I do have the thing that starts with like ltps or something like that installed through terminal. If I type in the ip address of the server in it will open up a window with ubuntu in it. I believe it is in a program called xpst or something like that. I dont know exactly but I found it in instructables here. 

it also says 27b in the bottom left corner and 100f ofer something that looks like a sideways wifi thing that ubuntu shows. 

ok, it looks like the image if you scroll down to 27 on this page but it says 27b instead of 27d

http://wikis.sun.com/display/SRSS4dot2/SRSS+Troubleshooting+Icons I


I found these websites about it but I would like something easier.

http://wiki.sun-rays.org/index.php/SRSS_4.2_on_Ubuntu_9.10_(i386,_amd64)

https://help.ubuntu.com/community/UbuntuOnSunRay