no idea how to proceed

I am running Linux RedHat and Java 1.7. I connect via ssh. I unzipped RapidMiner in /opt/rapidminer,
went to the folder /opt/rapidminer
and then excuted:

./scripts/RapidMiner

and received:

[root@natio5-iccvm01 rapidminer]# ./scripts/rapidminer
RAPIDMINER_HOME is not set. Trying the directory '.'...
No maximum Java memory defined, using 512 Mb...
Starting RapidMiner from '.', using classes from './lib/rapidminer.jar'...
RapidMiner version 5.2.003, Copyright (C) 2001-2012
RapidMiner comes with ABSOLUTELY NO WARRANTY; This is free software,
and you are welcome to redistribute it under certain conditions;
see license information in the file named LICENSE.
Usage: com.rapidminer.RapidMinerCommandLine [-f] PROCESS
  PROCESS  a repository location containing a process
  -f        interpret PROCESS as a file rather than a repository location (deprecated)


This seems to want some sort of repository, which I don't think I have. Is there one provided? OR how do I create one and then name it for RapidMiner to use?

I also tried
./scrpts/RapidMinerGUI
and got:
RAPIDMINER_HOME is not set. Trying the directory '.'...
No maximum Java memory defined, using 512 Mb...
Starting RapidMiner from '.', using classes from './lib/rapidminer.jar'...
Apr 16, 2012 12:03:30 AM com.rapid_i.Launcher ensureRapidMinerHomeSet
INFO: rapidminer.home is '.'.
Apr 16, 2012 12:03:30 AM com.rapid_i.Launcher main
INFO: Launching RapidMiner, platform ANY
Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at com.rapid_i.Launcher.main(Launcher.java:334)
Caused by: java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
        at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:197)
        at java.awt.Window.<init>(Window.java:534)
        at java.awt.Frame.<init>(Frame.java:420)
        at java.awt.Frame.<init>(Frame.java:385)
        at javax.swing.JFrame.<init>(JFrame.java:180)
        at com.rapidminer.gui.tools.SplashScreen.<init>(SplashScreen.java:93)
        at com.rapidminer.gui.tools.SplashScreen.<init>(SplashScreen.java:106)
        at com.rapidminer.RapidMiner.showSplash(RapidMiner.java:558)
        at com.rapidminer.RapidMiner.showSplash(RapidMiner.java:554)
        at com.rapidminer.gui.RapidMinerGUI.run(RapidMinerGUI.java:212)
        at com.rapidminer.gui.RapidMinerGUI.launch(RapidMinerGUI.java:499)
        at com.rapidminer.gui.RapidMinerGUI.main(RapidMinerGUI.java:482)
        ... 5 more


not sure what I am looking at, but it doesn't match any docs or videos I can find. The video shows a GUI coming up and a nice clean prompt asking to create a repository- we're clearly miles from that here.

Can someone point me to docs that actually match what I am looking at, assuming this is even supported. Or next steps. Or something? Was there something in the setup or system requirements I missed????? Completely flummoxed as to how to proceed.

Thanks.