At the recent BUILD convention in the US, Microsoft announced a series of new Cloud-based services, one in particular being Team Foundation Server. This new product was called TFS 2011 Preview and you can meet all documentation in the following page: http://tfspreview.com/
I am working in a project where we are using TFS PREVIEW as our data repository and i want to work with jenkins as my continues integration server. However jenkins can not connect to the tfs preview 2011 to download the sources using the TFS Plugin. The following is the error:

Started by user anonymous
Building in workspace C:\Builds
[Builds] $ "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\TF.exe" workspaces -format:brief -server:https://jenkins.tfspreview.com/defaultcollection ********
TF30064: You are not authorized to access the server.
FATAL: Executable returned an unexpected result code [100]
ERROR: null
Finished: FAILURE

I think that Jenkins needs an especific Plugin for connecting to the TFS 2011 Preview.

How can I solve this? Could you Help me?