Managing and publishing to ArcGIS Server 10.1 with ArcGIS Desktop 10.0??

[BrendanWalashek]

I can make a connection as a user "Use GIS Services" from ArcCatalog 10.0 to my new ArcGIS Server 10.1, but I cannot make a "Manage GIS Services" connection.
I get an error popup saying: We are unable to connect to:
http://blah blah blah
Error: Access Denied: The SOM service is not registered on machine <hostname>

It used to work when I had ArcGIS 9.3 and ArcGIS Server 9.3.
Does this mean I cannot manage or publish to ArcGIS Server 10.1 with ArcGIS 10.0 unless I pony up and upgrade my ArcGIS Desktop 10.0 to 10.1!!!??

[TonyContreras]

The architecture of ArcGIS Server 10.1 is very different than any of the previous versions. Before 10.1, administrative connections were made only using DCOM communications. Now, it is all over HTTP traffic, which Desktop 10.0 and earlier do not know how to communicate through. In this case, only version 10.1 of Desktop can administer the same version of ArcGIS Server. There are however many samples for using scripting to administer ArcGIS Server that may accomplish the tasks you need.

Scripting ArcGIS Server administration

[BrendanWalashek]

I tried adding a Service though Server Manager, but it asks for a SD (Service Definition) file...which as far as I know can ONLY be created in ArcGIS Desktop or Catalog 10.1 correct?  Still leaves me unable to create/publish a Service to 10.1.  Correct?

[nicogis]

"...Manager only allows you to publish service definition (.sd) files to the server. If you want to publish another type of GIS resource, use ArcGIS for Desktop ..."

http://resources.arcgis.com/en/help/main/10.1/index.html#//01540000043p000000