Can't use Get-ADUser command

I have the following code.   When I run this code on my workstation it works that is because I have the RSAT tools installed.  I read the following on the Net

By default one can not import Active Directory module in Powershell in Windows 7. You need to do either of the below:

Download "Active Directory Management Gateway Service" on 2003 or 2008 server [http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=2852]

Download "Remote Server Administration Tools" on Win 7 [KB958830: http://www.microsoft.com/download/en/details.aspx?id=7887]

So how do I run the following code without being able to  import-module activedirectory ??

import-module activedirectory 

$getU = Get-ADUser MyUser -Properties homedirectory

$HomeDrive = $getU.HomeDirectory

$HomeDrive