autoinst.xml for dual boot.

Hello List, I have about 30 laptops to be installed as dual boot (Windows and SLES9). Currently the laptops are installed with Windows and other linux (most of them with redhat). Is it possible to create a single autoinst.xml file which should delete all the existing Linux partitions, if any and install SLES on that space? If yes, could you suggest the contents of that autoinst file. Thank you, Ajay