Dear All,
Please find below:

Windows Server 2008 Remote Server Administration Tools for Windows Vista Service Pack 1
http://support.microsoft.com/kb/941314

Remote Server Administration Tools for Windows 7 Release Candidate (RC)
http://www.microsoft.com/downloads/details.aspx?FamilyID=f6c62797-791c-48e3-b754-c7c0a09f32f3&displaylang=en