There's a new build of SheepShaver available today:
http://www.emaculation.com/forum/viewtopic.php?t=6703
This one addresses a problem in the October 24 release.
These are sort of nice, since it has been one year since the last updated build!
Readme says:
Improvements in 06 November 2010 build:
- Will not try to run in 64-bit mode in Leopard.
Improvements in 24 October 2010 build:
- Will now run in 64-bit mode in Snow Leopard on 64-bit capable Intel Macs.
- Multiple related 'under the hood' changes.
- Partial support for bin/cue files to enable the use of (images of) mixed
digital/audio cdroms.