I am a newbie trying to understand what I am missing here. I have downloaded the file "Mplayer-gui-0.90-1.i386.rpm" from the Mplayer site. I have placed it in the "/tmp" directory. When I try to install it I get the following ERROR:

Packages Not found

The following packages could not be found on your system. Installation cannot continue until they are installed

Unlocatable Package.............Required by
mplayer-skin.............................mplayer-gui
mplayer-common=0.9.............mplayer-gui

This is part I don't understand. Why is telling me this? that's the package I am trying to install!

Any help on this issue would be greatly appreciated!

To install packages that are saying they do not exist (For the obvious reason you are installing them ) place all packages on the same line:
rpm -Uvh filename1.rpm filename2.rpm . ..

So:
rpm -Uvh Mplayer-gui-0.90-1.i386.rpm mplayer-common-0.90.i386.rpm mplayer-skin...

And so on..

HTH

Welcome to LQ

Cool