I do not think the worldeditor have ever been updated but if it were it would be shipped with the warcraft 3 patch. If you just have warcraft 3 and not frozen throne you might wanna get that too it adds massive amounts of content to the worldeditor
Warcraft 3: Reign Of Chaos editor should be installed inside the Warcraft III folder labeled "Warcraft III World Editor".
If you already have a valid serial number you can add it to a battle.net account and download it there :)
Patch 5.0.0 should be the next major content patch (right before Mists of Pandaria comes out) for World of Warcraft. There probably will not be a patch 4.4.
"Warcraft 3 World Editor".
you can't
You don't enter codes onto Warcraft 3 world editor. Once you buy Frozen Throne, World Editor should come along with it. But you have to enter the CD codes into Frozen Throne but not World Editor.
its already out
www.worldofwarcraft.com/patchnotes/3.2.0
Start>Programs>Warcraft 3 if it's not listed there re-download warcraft 3
magic . . .
Before 3.2
if your talking about the warcraft 3 world editor if you go in the start menu, all programs and then warcraft 3 folder then there it is..