Cannot run the Malware Removal Guide....

I am working on another computer. I am not able to visit this forum or any other for that matter. I cannot download most the antivirus. I have used ccleaner, spybot, sdfix, vundo fix, but the browser is still hijacked and not allowing me to any sites. Windows Installer is disabled as well. I cannot get through the malware removal guide because it is not allowing me to download most things, and I cannot get to this site to download directly from here. Any suggestions on just getting me to this site? Also I have downloaded mozilla and that is not working either. I was able to remove some spyware from the computer but am still being redirected and getting pop ups. Current programs are not detecting any problems.