Dell Openmanage 6.3.0 on ESX 4.1 error

hi

I am trying to install Dell Openmanage 6.3.0 (OM-SrvAdmin-Dell-Web-LX-6.3.0-2075.ESX40.i386_A00.11.tar.gz) on my R900 server which has ESX 4.1 installed on it but it fails with the following error:

Error: Check whether the Dell OpenManage media is corrupted.

       If you are using the Web pack to install Dell OpenManage,

       ensure that you use the Web pack corresponding to the

       architecture and operating system on your system.

Anyone got openmanage working on ESX 4.1 ?

thanks

Pieter