Hi Simon,
After your commits regarding the DC format, the DC is still not working.
The GN system does not start, reporting this exception:
2007-10-07 15:15:44,458 ERROR [jeeves.engine] - Exception : java.lang.IllegalArgumentException: Type is null for ‘element’ : dct:spatial
2007-10-07 15:15:44,458 ERROR [jeeves.engine] - Message : Type is null for ‘element’ : dct:spatial
2007-10-07 15:15:44,459 ERROR [jeeves.engine] - Stack : java.lang.IllegalArgumentException: Type is null for ‘element’ : dct:spatial
at org.fao.geonet.kernel.schema.SchemaLoader.load(SchemaLoader.java:104)
at org.fao.geonet.kernel.EditLib.addSchema(EditLib.java:78)
at org.fao.geonet.kernel.DataManager.addSchema(DataManager.java:247)
at org.fao.geonet.Geonetwork.start(Geonetwork.java:141)
Could you please have an urgent look at it so we get a working application on SVN? That would be great 
Ciao,
Jeroen