Networking :: freenx

I've bee using the freenx client extention to loggin to a Knoppix NX server with multipple users (pent 1 with 32 megs of ram and DSL as client) and I am very pleased with this type of setup, is very responsive and I get the complete KDE screen (no sound forwarding yet) , sometimes I forget I am working from a client ,
I read somewhere that I can login to an LTSP server (SKOLELINUX in my case) usinf Free NX but I have not been able to .
Has anyone have any axperience with this type of setup?
any help will be much appreciated.

original here.