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You are gonna have problems using some of the standard apps (like yast) if your system can't find /var/lib/...
I suggest ubcd or system recovery, both live cd's.
They have tools for recovering data, dd_rhelp dd_rescue, and or testdisk photorec.
There are others, but I know these two work.
One other thing you might try is to use the suse install cd and "begin" a new install and after you have set the partitions, cold reboot, just before formatting.
Hopefully that will set the mount point back to where it was.
You may also then copy the data back to the /var partition.
Another thing you might try is slax. A bootable flash-drive OS,
which will give you most of the standard tools, to copy back your data.
I hope this helps you, I'm guessing that the most important data would be in /var/www (being a server)
Regards Glenn