Installing CO error message...

Uhm... I am trying to install CO on my other comp and I get the same error message as the one in here, [Only registered and activated users can see links. Click Here To Register...] , exept, instead of saying Play.exe (or somthing) it says Setup.exe, because I am trying to install it not launch the program.
Any suggestions welcome!

Hi.
go to conquer folder, delete it manualy.
then get a AntiVirus, scan and clean ur comp.
then, download a new client and instal it.
Good Luck

lol, so ur sayin that its got a virus