I had already posted to installing new xorg. but you told it requested CD for dependencies. If you are unable to modify the data, probably the best solution is reinstall Xorg.
#sudo yast2 --install x11-input-synaptics
so manually download x11 input synaptics. and install them.
see this page
select your version , bit type (32 or 64 ) and download rpm file.
you can install using
#rpm -ivh x11*.rpm