Hello all,
   We have been trying to find a modern equivalent to sidekick but found nothing with the flexibility and capabilities of this great program.  We were also trying to move our computers over to Ubuntu(linux) OS.  After finding no replacement, we finally got sidekick 98/99 to work on wine with wine in windows 3.1 compatibility mode(sidekick 98 may work in latter compatibility) We also had some issue with label printing being vertical but not horizontal and found a label printer(QL 570) whose drivers worked with sidekick.  I didnt have any success with crossover but that program dosnt have any early windows version(pre-Win95) compatibility modes.  So I am just posting this so anyone going through the same search process as me can find it.  Long Live Sidekick!