In order to remove the newver version of iTunes, go to
Control Panal => Add or Remove Programs and the select iTunes remove the softfware.
After uninstalling the software, go to oldapps.com and get the older version of iTunes. Download it and install it.
Old Version of iTunes for Windows: http://www.oldapps.com/itunes.php
Old version of iTunes for Mac: http://mac.oldapps.com/itunes.php