rather than compiling software yourself you'll want to find rpm's. Yellow dog (terrasoft) links here--
vlc (videolan-client) will work but totem would work if you added gstreamer-plugins-bad and/or gstreamer-plugins-ugly (doesn't seem to be here for some reason)
the problem you'll have is that in linux installation programs (packages) require other software (dependencies).
Here's what you do with the files (you need the root password if you're logged in without full permissions)
yum localinstall xxxx-xxxx-yd6whatever.rpm
and it will check the dependencies. If you are missing anything you need to install that first or it will fail (but not hurt anything). If it can continue it will ask for confirmation, (click 'y').
If you have a package and want to know if you can install it try
rpm --requires xxxx-xxxx-yd6whatever.rpm
Sorry if this is hard to read I'm at work and keep getting pulled away so I'll send it as is and follow the thread.