I downloaded the game in browser, and finished the tutorial.
It then went to this message.
http://img163.imageshack.us/img163/1942/unledtf.png/
Personally, I can't wait 120 hours for it too finish downloading. So I closed it and downloaded spiral-install.exe
Once that had finished downloading, and I logged in it went to another download screen (I'm assuming the same one as when you finish the tutorial.)

This time it will only take 20 minutes. I'm still downloading, but will I have to download anymore afterwards?