There is one listed on whdownload:
Version 1.0 - 2007-01-12 = 370.34 KB Zip file
Which unpacks to 830,703 bytes ??? = Not 2 (full) Disks
That file is also linked to SPS
http://www.softpres.org/?id=:games&gameid=2270
and that file is "Jetsons: The Computer Game"
which is one disk.
Text file confirms it ain't the one:
"This patch applies to "Jetsons" (c) 1992 PAL Developments/Hi-Tec - 1 disk.
Thanks to Tony Aksnes for sending the original!"