How long did you wait after it said "Downloading File Manifest"? On slower connections especially, this step can take a while (it's downloading files from the patch server) and doesn't really display much feedback while it's working.
Usually it does that when you installed from a DVD and needs to update its files before you use it.
If you still have a working PC version, I have a section in my guide (linked in the signature) at the top about how to migrate from the PC to the Mac client without waiting for much downloading.
Manga @ Triumph
"Meanwhile In The Halls Of Titan"...Titan Network Working To Save City Of Heroes
Save Paragon City! Efforts Coordination
It was maybe 1 or 2 mintues but it move really slow. At one ponit i was halfway done and then my internet shut off it. It was started at 534 then reset itself when i pulled it back up after reconnecting and downloading slow as all get out (were i'm at internet blows) but when i started it back up it was back right at 534 on that PIGgs maps or what ever it says.
Secondly would it be better to download from the site.
Game that is because it was off of a DVD
Sounds like you have really slow internet. The game is a very large download - you might want to try to copy it from the DVD again, and then run CoH.
If that's too slow also, perhaps you have a higher-speed wifi location somewhere nearby, like an Apple Store, where no one will mind you downloading a patch for a little while.
Manga @ Triumph
"Meanwhile In The Halls Of Titan"...Titan Network Working To Save City Of Heroes
Save Paragon City! Efforts Coordination
Well i recently got a mac and i don't have to tell you that its completely up to date. Everything runs smooth until the updater comes up. IT goes straight to the "Downloading file manifest thing. Never had to deal with that on the PC so if someone can walk me through fixing this it would be greatly appreciated and i mean GREATLY!!!!!!!! FYI new to macs so just laman terms for me. Plz help