There is no Mac version of SBNews “News Robot” – it was a Windows-only program. Development ceased in June 2007. SBNews also never supported the modern NZB-style of downloading. If you are looking for a replacement, you will be able to download far more efficiently with a modern Usenet downloader like SuperNZB. If you want to continue downloading by directly scanning newsgroups, NewzScape is a good replacement for SBNews on the Macintosh.