I'll just tell you the correct series of events that should happen
Download the .exe
Place .exe in a folder on Desktop
Run the .exe
You will have a patcher come up, and you'll download a 0 kb Gw2.tmp file and a ~13 gb Gw2.dat file in the folder the .exe is in
Once you have finished, run the .exe again and the patcher will check for updates. This takes very little time, as there are no updates.
The login screen will appear. You will desperately attempt to log on, but get an error or a message telling you there is no BWE event.
You account name is an email you used when you set up your account, the password is what you used for setting up your account.
If the patcher stops downloading, just close and run it again, your progress will be saved even if the patcher doesn't actually tell you it did.
---------- Post added 2012-04-25 at 02:00 PM ----------
This is what the patcher looks like
This is what the folder should look like
Ignore the Chrome file, you get that after you completely download the game and run the .exe (I think it has something to do with the login screens password thing)