I'm not 100% clear what you want to do, but anyway it should be possible with a knoppix live cd - or a suse live cd for that matter. Install both drives, master/slave properly configured, and boot the live cd. Mount the source partitions and make any new partitions (with fdisk), mount them and copy the files over with the -a switch to cp. Edit /etc/fstab as appropriate. Now boot a grub floppy disk*, specify your kernel and parameters and boot that. Suse ought to now come up. Run Suse's lilo or grub to make your hard disk bootable again.
These instructions are a bit sparse... read up on all of the above procedures before your attempt.