Eclipse2003,
SMB Support on UNIX is generally done with the SAMBA software:
http://us1.samba.org/samba/what_is_samba.html
This is built into to most Linux distributions, but you may have to manually add it to SCO UNIX. See if SAMBA is an install option on your SCO Server. If not, Google the internet for SAMBA and SCO UNIX - you should find a solution.
- John