Installing 32-bit software on 64-bit computer

I have used autoyast SUSE Pro 9.2 on a variety of 32-bit machines without problems. I want to install on an HP xw6200 machine and it gives be a message - "Cool computer, but you are about to install 32-bit software on a 64-bit computer". Now it requires manual intervention right at the start and after first reboot. I think this message is from the boot loader. Is there any way to suppress this so that the installation can proceed automated. Thanks! Bis.