Not finding HSO in Halion

I recently bought Halion Symphony Orchestra. I just finished installing it and having it registered by the Library Manager. But after that, when I try to search for HSO instruments in Halion Sonic 3, I can’t find them. As far as I see, they are not in Halion Sonic. What should I do? How do I get them to show up?

When you say you cant find them, do you mean you opened the media manager and got to the root/home Media Bay window, and you saw all the other factory content but not HSO?

Make sure to open Media Bay, find All Instrument Sets and click it.

Yes, that is exactly what is happening.