Siemens S5 Version English?

I have PG720, but S5 soft is German. I can't reinstall soft S5 because I've lost the Authorization Disk.
Who can help me? I can download S5 software version English from where?
Thank you very much.
My email address: [email protected]

Your Authorization REMAINS intact in your PC hardrive, even if you uninstall your S5.
(If you run authorization manager in S-5-7 pkgs, you can see that you will still have a valid licence, if what you say above is true.
I don't know any location of Free versions of S5.
You might be better off sticking with what you have, or spend some money on the "Windows" version of the knock-off version.