I Just checked it out..... After you setup your internet conection, a dialog asking for hostname and domainname comes up (here's where i misled you
sorry about that); leave both the fields blank, then a dialog asking for http proxies comes up leave those blank too. In the next one, enter, in the first field the ip address of the server(213.228.0.141), next enter the mandrakelinux directory. Leave username and password blank. After this "Loading Program into Memory" should come up(be patient)... and rest of the install stuff is simple.
Actually since you are doing a network install, i'd suggest that you install the least amount of packages you can(for now). That is leave out office/multimedia/games(and even devel(development tools)) for now.
This is because, you never know; the connection with the server may be reset(it doesnt happen often, but "luck is luck"
) and you'll have a broken box and will have to restart installation again.
Once you have installed everything and logged into KDE, just post a message here.... and we'll introduce you to the magical world of URPMI, and we'll get back all those packages you skipped during installation.