How to set PIP

Hi everybody,

I'm new to windows azure and I need your help. I have VM and I would like to set PIP for it. I found this article http://msdn.microsoft.com/library/azure/dn690118.aspx and there is a command " Get-AzureVM -ServiceName FTPInAzure -Name FTPInstance | Set-AzurePublicIP -PublicIPName ftpip | Update-AzureVM " to add PIP to exsisting VM using powershell. I tried to run it but I got error. BTW, I didn't change anything on the command. thanks in advance.

Regards,

Abdulaziz