ubuntu thinclient server

I have installed a Ubuntu 8.04.1 server with tftp, dhcp, bind (dns), http, nfs and samba.
Installed ltsp-server-standalone with apt-get
Modified the /etc/ltsp/dhcpd.conf to match my network properly
Got problems where the client stopped booting with a "Error: Connect: Connection refused" and a busybox prompt. Turns out I needed to run dpkg-reconfigure nbd-server.
Here's my /etc/nbd-server/config:

[generic]
# If you want to run everything as root rather than the nbd user, you
# may either say "root" in the two following lines, or remove them
# altogether. Do not remove the [generic] section, however.
        user = nbd
        group = nbd

# What follows are export definitions. You may create as much of them as
# you want, but the section header has to be unique.
[export]
        exportname = /opt/ltsp/images/i386.img
        port = 2000

Now I want my other pxe boot options back so I can run installs and tools as well as full Ubuntu thin clients. More to come...