Went with
http://ipkg.nslu2-linux.org/feeds/optware/slugos5be/cross/unstable/ in the end.
Instructions were fine, although I had to edit the /opt/etc/ipkg.conf file to reflect the above.
Currently get an error after trying to install nfs-utils so I can get my drives back on-line
Configuring nfs-utils
//usr/lib/opkg/info/nfs-utils.postinst: line 7: update-rc.d: not found
postinst script returned status 127
Configuring portmap
//usr/lib/opkg/info/portmap.postinst: line 7: update-rc.d: not found
postinst script returned status 127
Collected errors:
* ERROR: nfs-utils.postinst returned 127
* ERROR: portmap.postinst returned 127
Any ideas?
Neil