Thanks for your answer ^^
I clicked ever17PC_us.exe to play, and as I said at my 1st post, I already turned off my anti-virus.
And I re-checked my torrent so many times, but it didn't work even though the game folder has all the files with the correct sizes, so I think there's nothing to do more with it
About the read-only files, when I selected the folder and tried to remove the read only attribute in the property dialog, it looked like it worked, but when I closed the dialog and selected the folder again, the read only attribute was still there. I searched on Google and it said that it's normal with Win xp
So I have no idea what to do T.T