so what your telling me is basically install it again ? i tried and still no luck
Sorry, but that's just not possible. Are you really SURE you don't have any antivirus installed ? Because, an antivirus blocking the new version, is the only way you could be getting an old version (No Dallas in the Addon Manager menu=Old version) with the KDFW installer.
It can't be a connection problem because, if there's a connection problem (like a firewall) the installer will take a local copy of its files and, in case of KDFW, they are the same of the one that are online so, they DO have Dallas in the Addon Manager menu. And, in any case, you would get a warning if there was no internet connection during the installation and, as I've said, it won't matter in case of KDFW, because its installer contains the latest version anyway so, it doesn't even need the internet connection to get the latest files.
So, that leaves only the antivirus blocking the new version, and leaving the old one in place, unless you have some other kind of security software which is not an antivirus, but is blocking the new files anyway.