I can't access my old version of Groove Agent on Cubase 9.

HI folks!

I used to use Cubase 5 on a different (now kaput) laptop which came with (as well as Halion) Groove Agent. Now, on my new computer, I use Cubase 9 (which I bought) and have no access to Groove Agent OR Halion. Is there any way I can access the versions of Groove Agent and Halion (which were paid for) that came with Cubase 5 so that I can use them on Cubase 9?

Any help is much appreciated.