Hi, thanks for your bug report. Unfortunately OpenOffice.org is not yet installable on Linux/Sparc, because there are quite a lot of changes needed to port to a new architecture, and these have not been done.
openoffice.org-debian-files should really Depends: openoffice.org, not Recommends. Sorry for the confusion - this was due to a problem with apt not installing packages that depend on each other properly. We will upload a new openoffice.org-debian-files shortly. Chris