I have updated the Ubuntu Intrepid package for PD-extended and it no longer depends on any libraries that are not on the Intrepid repositories. The link has been updated on the PD page.
Hans, if you had already uploaded the old one in the APT, can you change it with the new one? (Link: http://pd.ianagnostopoulos.postgrad.shef.ac.uk/pd-extended_0.40.3-intrepid6_...)
My 64-bit efforts are also postponed until mid-January, due to the Sound Studios moving to a new building.
-Ilias