I am running 64bit Vista home Premium. I HAD iTunes running at 1 time, but somehow the CD burning software became missing, and I did a re-install. It worked, but same problem occured. I attempted to do a manual registry fix, and really screwed things up! I cannot install iTunes anymore-keep getting message saying it cannot locate install software, and shortcut on desktop sez cannot find software. I dumped all files i could find to do clean install, but somehow, my manual...