Thank you for the quick response. I see that I can't search because none of the engines function with this version. I would have attached a screenshot of the log as it is "downloading" from an imported .nzb, but there does not seem to be any means of doing so, and I have no web site where I could post it.
The log rejects every piece, saying each time that it can't retrieve, I should join a news group first. In the bottom panel it shows the news group that I belong to, Unliminews, and as far as I know it is connected to it. Certainly I gave it all the relevant data, address id and password in Settings.
The log shows the .nzb file that it failed to download before. Thinking maybe there was something wrong with this .nzb file, I tried importing a different .nzb file, but alt.binz refused to import that one. I selected it and pressed Open as usual, but nothing happened, the file name did not appear in the top panel.