If they did install fine, you should be able to start Xine with
or if that didn't work right after the installation, try logging out, pressing CTRL+ALT+F7 to kill X (it should restart right away) and logging in and trying again. LaTeX needed this to work.
Why didn't you install Xine using the SuSE Yast? Did you have a specific reason to install using rpm command; oh, and did you use SuSE specific rpms (does it use rpm)?
I always thought it's
rpm -Uvh package.rpm
or something, but I guess it works just by "rpm package.rpm" too..