Downloading a patch problem

Hi everybody !

I downloaded WoTLK client from warmane website, I successfully downloaded it, but when i launch it with WoW.exe, after connecting, the game downloads some updates and then asks for downloading a patch. But when I try to apply this patch, there is an error, and it puts :
" The file "C:\Users\famille\Downloads\Wrath of the Lich King 3.3.5a\WoW.exe" is read only and cannot be overwritten. Please try installing to a different location. (ConflictManager::DeleteFile)
"

How can I resolve this please ?

Thanks in advance.

you need to log-in by using your warmane account name, not email address.
be sure your client is still 3.3.5 otherwise you need to download it again

Thanks, i have forgotten this point. It now works ;)

Is it normal that there is a 1000 persons queue (50 min) ?