I think I found an easier way to install in Virtualbox, I used 3.2.8 r64453 for windows.

 >Download the in 7.7.2 code from fix central 
 >Create a linux VM in virtualbox (I used generic linux 2.6)
 > 1gb memory, 64bg disk

Edit the XML file located, in windows xp, at: C:\Documents and Settings\<your user>\.VirtualBox\Machines\<VM name>

In the <ExtraData> section add the following to fake out the HMC code. It will think the VM is now a 7310-CR3 :-)

     <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiSystemProduct" value="7310CR3"/>
     <ExtraDataItem name="VBoxInternal/Devices/pcbios/0/Config/DmiSystemVendor" value="IBM CORPORATION"/>

"not sure the second line is needed" you could probalby add more "pcbios" options but less is always better.

I added a second ethernet to the VM config after the initial install

But the best thing is that I did not have to muck around inside of the .iso files.

Bryan

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Thx Bryan, it is so easy, but...

In the new version of VirtualBoxes the path is different: C:\Documents and Settings\<your user>\.VirtualBox\VirtualBox.xml Must be switched off all virtual machines - sleeping/standby is also not good. Exit from the software, save a copy from the xml file, modify the original, save and try.

That is all, I hope it helps for someone.

Laksi