postgresplus_x86-64.bin ERROR at line 2479

Hi all,
I've strictly follow the tutorial at: http://www.enterprisedb.com/learning/tutorial/install_postgresql_linux.do BUT I get the following error:

[root@fsc pgplus-8311-1-linux-x64]# sh postgresplus_x86-64.bin
Preparing to install...
Extracting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

postgresplus_x86-64.bin: line 2479: /tmp/install.dir.24294/Linux/resource/jre/bin/java: No such file or directory
postgresplus_x86-64.bin: line 2479: /tmp/install.dir.24294/Linux/resource/jre/bin/java: Success
[root@fsc pgplus-8311-1-linux-x64]#

My sistem is:
Linux fsc 2.6.35-ARCH #1 SMP PREEMPT Fri Aug 20 22:49:24 CEST 2010 x86_64 Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz GenuineIntel GNU/Linux on KDE

Can you help me?
Thank you in advance!

I've also ask at my distro forum (Archlinux)
You can follow the update here:

https://bbs.archlinux.org/viewtopic.php?pid=818425#p818425

Obviously, if I (we) solve I'll post a SUM there too.

Hope in your help...