I would just backup any important data and/or programs. Then just boot SuSe off the DVD Drive or the CD-RW drive.
Also here's a tip for partitioning:
hda=Usually the first physical hard drive on your on system or the primary master device.
hda1=The first partition on the first hard drive.
hda2=The second partition on the first hard drive.
hdb=Second HD or the primary slave device.
hdb1=The first partition on on the second hard drive.
hdb2=I think you get it by now.
If it's sd instead of hd your drives have been picked as or are SCSI. Also your CD-RW drive and DVD drive may be picked as hd*.
BTW: You can forget hda, hdb stuff if you all already know it.