can't install maemo-sdk-install_5.0.sh,help

[cnhujin]

When I install maemo 5 on redhat9 Linux,
I have installed the scratchbox into directory /scratchbox,and make the user root into group,but I want to install sdk,there are error as follows,please help me,thank you very much!

[root@localhost tmp]# sh maemo-sdk-install_5.0.sh
This script will install maemo SDK 5.0 fremantle release to your computer.

Install options
Force remove of existing targets (no)
Alternative sources.list ('')

Target configuration for armel (FREMANTLE_ARMEL)
compiler=cs2007q3-glibc2.5-arm7
devkits=perl:debian-etch:qemu:doctools:svn:git
cputransp=qemu-arm-sb

Target configuration for i386 (FREMANTLE_X86)
compiler=cs2007q3-glibc2.5-i486
devkits=perl:debian-etch:doctools:svn:git

Checking for prerequisites
--------------------------

wget tool in path... /usr/bin/wget
Checking for dpkg tool in path... which: no dpkg in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin:.)
not found.
Running outside of scratchbox... yes
Script not run as user root... no
E: This script should NOT be run as user root.

[divanov]

SDK is officially supported for Debian i386, so using in on Red Hat 9 won't be the same.
There are some guides on the net how to setup and run SDK with different Fedora versions (which is successor of Red Hat distribution):
http://aalonso.wordpress.com/2008/11...1-on-fedora-9/