OK so I reflashed, and all works, but only from the command line.
Steps to getting it to work:
1. set network up
2. add a nameserver entry to resolv.conf
the next stages are not essential but it is easier to type on a full size keyboard
3. change passwd on the Z
4. start network on main box (I use a script for the Z on usb)
5. ssh into Z (I use ssh 192.168.0.5)
the next stages are typed from a console on my main box but are carried out on the Z
6. add machine feed to /etc/ipkg.conf
7. ipkg update
8. ipkg install -d sd packagename (I always use froot as my first package and put it on my sd card)
9. ipkg-link add packagename or ipkg-link mount /media/card/packages
10. /etc/init.d/opie restart (to encourage opie to put icons on the desktop tabs)
opie-packagemanager and opie-aqpkg just did not work nicely for me, too many errors.
Usually unable to find file, or unable to link file or libqte2 and libqpe1 errors.
However all is now right with the world, but it was lucky that I'm not a newbie or the Zaurus fraternity would have been minus one member.
samac