just put the code in packages/photo-album and restart the server. You dont really need to do a server install.
You might need to edit some parameters since I
changed the thumbnail and other size to take WidthxHeight
nubmers and the old code only supported single integers.
OK, I'm done. There was some problems running the drop scripts because of some crap that had been left in the acs_object_types and acs_attributes, but step by step it eventually went okay.
Thanks for your advice, I'll drop you a line about the new version of the package.