vmware-config.pl cannot be used since Workstation 6.5. It does not exit anymore in recent versions.
For Workstation 7.x and later you need to use the command below to reconfigure the software. Run the command from root
vmware-modconfig --console --install-all
The --console switch tells Workstation not to launch the GUI, and the --install-all switch rebuilds and reinstalls all modules.
Also, I would recommend you to try a supported Host OS on the physical machine. Even if you succeed to make it to work on openSuse 12, you will still see abonormal behavior during using Workstation. That might included intermittent crashes, features not working, etc.
You can verify the compatibility from the VMware Compatibility guide
http://partnerweb.vmware.com/comp_guide2/search.php?testConfig=16&deviceCategory=software