Well, I massively updated it, using the original as a starting point. I added 12 movies and removed 1 (being Shaun of the Dead.. wtf?), replaced the bland Land of the Dead and Day of the Dead 2: Contagium artwork, replaced the font with something more appropriate for zombie flicks, and generally made it a bit more streamlined.
I wish I could've added more Zombie movies, but I could only find artwork for three of them (incidentally, the alternate Zombi 3 is Let Sleeping Corpses Lie, Zombie 3 is Burial Ground: The Nights of Terror, and Zombie 6: Monster Hunter is Athropophagus aka Absurd). http://en.wikipedia.org/wiki/Zombi_series was helpful in finding out if Zombie 4 and Zombie 5 were official sequels or not.
Enjoy! And let me know if you spot something that's incorrect... I'm sure it'll have to be updated again in the future, what with Night of the Living Dead: Origins, ANOTHER Day of the Dead remake, and Dawn of the Dead 3D in the works. And those are only the ones off the top of my head!