Parallels Plesk Panel 9.5.3 is available for downloads and installation through Autoinstaller since Nov 1.
http://www.parallels.com/download/plesk9/
http://www.parallels.com/download/plesk9win/
http://www.parallels.com/download/plesk/utilities/
http://www.parallels.com/download/lp/
http://www.parallels.com/download/plesk/templates/
http://download1.parallels.com/Plesk/PPP9/rn/en-US/plesk-9.5.3-for-deb-based-os.html
http://download1.parallels.com/Plesk/PPP9/rn/en-US/plesk-9.5.3-for-pkg-based-os.html
http://download1.parallels.com/Plesk/PPP9/rn/en-US/plesk-9.5.3-for-rpm-based-os.html
http://download1.parallels.com/Plesk/PPP9/rn/en-US/plesk-9.5.3-for-windows.htm