Good point. AccuTerm 7 works well with Wine.
Just make sure that you either use a 32-bit wine bottle, or enable multi-architecture. For a Debian type system, use something like:
dpkg --add-architecture i386
before installing Wine. Once Wine is installed, use Winetricks to install vb6run. I also install comctl32ocx and comdlg32ocx - but I'm not sure if they are strictly necessary.
GUI screens look slightly different, but all the functionality is there.
Cheers,
Brian