INSTALL:
To install the updates, extract the package, change into the directory
it creates, and run update.sh.

# unzip -o sv-update-<DATE>.zip
# cd sv-update-<DATE>
# sh update.sh 

Depending on the manner of update, it may be recommended to reboot
the appliance or re-run setup.  The update package will indicate if
this is necessary and give appropriate instructions.

DOWNLOADING:
To download the update into the appliance directly use "fetch."
E.g. 'fetch http://www.path.to/sv-update-<DATE>.zip'

To copy the update package remotely use a command like: 
'scp sv-update-<DATE>.zip root@filter.my.domain:/tmp'

On Windows, one can use "pscp," part of the Putty SSH suite, or WinSCP to
copy the files to the filter.