For EBOX-33xxA Series, EBOX-33xxMX Series:

FreeBSD: For upcoming 8.2-RELEASE and 7.4-RELEASE do not include vte(4) since vte(4) was committed to be in middle of preparation for 8.2-RELEASE and 7.4-RELEASE.However, users still can use vte(4) if he/she apply the patch at the following URL http://people.freebsd.org/~yongari/vte/ See README.txt for more details on how to apply the patch.

OpenBSD: The readied system image located 
http://www.mirrorservice.org/sites/ftp.openbsd.org/pub/OpenBSD/4.9/i386/install49.iso
You can download the image and install it on the Vortex86 platform directly.
OpenBSD source tree: http://marc.info/?l=openbsd-cvs&m=129506622317458&w=2

NetBSD: There is now a working driver for the Ethernet port of the Vortex86:
http://mail-index.netbsd.org/source-changes/2011/01/26/msg017761.html