All the stuff you will need should be on the CDs.
Open up System->Yast.
In the Software panel, click on Install and Remove Software.
Locate xorg-X11-Mesa and xorg-X11-Mesa-devel and check these for install if they aren't there already.
You might also need freeglut and freeglut-devel.
YOU just means Yast Online Update, and you can get to that from Software->Online Update in Yast. YOU should do most updates automatically for you. However there are some other packages there, probably Multimedia Option Pack 1 and 2 that you'll want so you can play MP3s. There's also an option to Download Microsoft True Type Fonts - these are all the Arial and Verdana type fonts that loads of website use, you'll probably want those too.
Open up System->Yast.
In the Software panel, click on Install and Remove Software.
Locate xorg-X11-Mesa and xorg-X11-Mesa-devel and check these for install if they aren't there already.
You might also need freeglut and freeglut-devel.
YOU just means Yast Online Update, and you can get to that from Software->Online Update in Yast. YOU should do most updates automatically for you. However there are some other packages there, probably Multimedia Option Pack 1 and 2 that you'll want so you can play MP3s. There's also an option to Download Microsoft True Type Fonts - these are all the Arial and Verdana type fonts that loads of website use, you'll probably want those too.