I'm not sure about Suse Enterprise but I know that OpenSuse will let you set up the partitions and install Grub boot loader which will provide you an option to select which one you want to boot into. I haven't tried this myself and usually always use EasyBCE for my boot management.
I wouldn't be surprised if the enterprise edition of Suse takes over.
Now how to resolve this issue, I'm not sure right off hand, let me do some research but I have a feeling you might be toasted with your Windows partition.