Hi to all

I have tried to download and execute rapidminer but it does't work.

My SO is MAc os x 10.5 so i decide to download the zipfile
before unziping i tried to lunch (doble clic) on lib/rapidminer.jar. FAIL
i have grant de execution of script file (rapidminergui and rapidminer). he tel me that output
macbook-di-gaetano-pottino:scripts gaetanopottino$ ./rapidminer
RAPIDMINER_HOME is not set. Trying the directory '.'...
No maximum Java memory defined, using 512 Mb...
Neither ./build nor ./lib/rapidminer.jar was found.
Try 'ant build' or 'ant dist' first or check the value of RAPIDMINER_HOME!
i have tried to set this:
## set the path to your RapidMiner installation here or in an environment variable
RAPIDMINER_HOME=${/Users/gaetanopottino/Downloads/rapidminer} FAIL
Some people know how to start it?
ps: i have already install java 1.6 like you see
macbook-di-gaetano-pottino:scripts gaetanopottino$ java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04-307-9M3263)
Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03-307, mixed mode)
macbook-di-gaetano-pottino:scripts gaetanopottino$
Thanks for your time