To manage/monitor/use a cluster you don’t need to be logged on the head node, you just have to install the HPC Pack on your Windows Workstation.
Idealy your PC and the cluster will be into the same Active Directory, but if this is not the case, you will need to follow this step :
1 - Install HPC Pack on your PC
2 - If the head node name resolution is not made :
Add your the head node into your host file ( located in c:\Windows\System32\drivers\etc\ )
3 - Use an account into the cluster AD when you talk to the head node :
Add your AD credential into the Network Password Manager of your PC (you will use this credential each time you “talk” to the head node):
Your can also go and see this Tutorial : http://www.vistax64.com/tutorials/76585-stored-user-names-passwords.html
see : http://support.microsoft.com/kb/931172