Hopefully with the will of the gods... ahem mods (btw, Rincewind, were you mod last month or last 2 months when i came here last time?) they won't close this thread and will keep it as the single one open.
GO here and search in this huge thread about mirrors to where to download the official patch.
CM 4 EP 4 thread at SIGames
I do not want to copy/paste those links found in there so that i won't be acused of leaching (or how you spell it).
P.S. Mods, if the conversations gets out of control (too many requests) then just lock it.
P.S.S. In case mods do not lock it up, whoever has links to the no-cd crack please post them in here.