not able to install Miro

[potat0]

Hi I am trying to install Miro using yum
I am getting the below erros. Letme know how to resokve it

Error: Missing Dependency: kernel-i686 = 2.6.26.6-49.fc8 is needed by package kmod-madwifi-2.6.26.6-49.fc8
Error: Missing Dependency: libx264.so.56 is needed by package mencoder
Error: Missing Dependency: libx264.so.56 is needed by package mplayer
Error: Missing Dependency: libx264.so.56 is needed by package mplayer-gui
on my system  uname -a  displays 
Linux localhost.localdomain 2.6.25.6-27.fc8 #1 SMP Fri Jun 13 16:38:52 EDT 2008 i686 athlon i386 GNU/Linux

thanks