In soap-gateway-create.sql I had to change "timestamp" to "timestamptz" in the param declaration for sg_namespace__new() and sg_method__new() to be able to import the "interop" and "workspace" services in my PG 7.3.1 installation of OpenACS 4.7.
This might break support for PG 7.2*, though, but I don't know for sure.
I also get:
'Request Error
can't read "diffdata": no such variable'
...when I follow the "Create new namespace" link.
The code says something about "debug"...
/Ola