Oren wrote:

I want to know if there is such a thing as a non-free, non-
shareware usenet client.

Agent.

Exactly. The OP has owned Agent and has had a proper key. He could
contact Forte and update the version.

Forte Agent version 3.3 and older is free.

Why would anyone that's not downloading binary files from usenet want or
need a paid news-reader just to read and post to text groups?