Using DAML-S with ontology editors

I'd like to define a service ontology using DAML-S and an ontology editor.
Can anyone suggest an editor that is compatible with DAML-S 0.6? I'm asking
this because I was unable to load parts of DAML-S 0.6 into OILEd 2.2.  Also,
I was not able to load any part of DAML-S 0.6 into OntoEdit V2.0 (free
version).  Has anyone else tried this?

What was the editor that was used to develop DAML-S  0.6?
Regards,

David H. Jones
Boeing Phantom Works,
Mathematics and Computing Technology
425-865-6924
425-865-2964 (FAX)
david.h.jones@boeing.com