@tubetime After seeing this, I hopped on ebay and found one... it just arrived with its boot #floppy, so I dumped it, since I couldn't find any others online: archive.org/details/netblazer-

Seems to be a standard FAT-formatted floppy, at least! Hopefully any credentials still on it are long expired in the past 30 years... the URLs aren't any good (and they seem to predate the Wayback Machine!)