>> I did a 'update-alternatives --config desktop-background' selected
>> 'nightly'
>> as my  background and know have a nice, login screen. The 'nightly'
>> images
>> do no get  added to '/etc/alternatives/desktop-splash', not sure how to
>> add
>> them.
>

Please file a bug report on this for the "debian" component, specifying
what is wrong and what you did to fix it.  That way I can deal with the
problem when I have time to look at the Debian packaging files again,

Tim