Pipeline Input Help!

Hi guys,

I'm having a bit of difficulty turning a script of mine into a re distributable tool and I've spent the best part of two days on it so here I am looking for some guidance.

Basically I am using Quest-AD cmdlets to copy users whilst adding unique information to them as they are created.

When I attempt to turn this into a parametrised cmdlet I have an issue in getting the get-qaduser cmdlet to recognise the "modelID" argument supplied by import-csv.

#Create function
function new-bulkaduser {
    [CmdletBinding()]    

#Setup Import and Set Variable
#Make sure path is reachable 
param(
      [Parameter(Mandatory=$true,
                ValueFromPipeline=$true,
                ValueFromPipelineByPropertyName=$true)]                             
            [string[]]$userlist='localhost'
)

Begin {

#import AD and Quest Snap-In
import-module activedirectory
Add-PSSnapin Quest.ActiveRoles.ADManagement

}

Process {

ForEach ($User in $Userlist)
{
    $source=$User.ModelID
    $fn=$User.FirstName
    $ln=$User.LastName
    $pw=$User.UserPassword
    $un=$User.SamAccountName
    $ip=$User.IpPhone
    $gn=$User.Group
    $pc = (Get-QADUser -identity $source).parentcontainer
    $domain = 'PINKE.NET'
 

get-qaduser -includeallproperties -identity $source

}

}

}

And a .csv example below:

ModelID,Name,SamAccountName,DisplayName,FirstName,LastName,IPPhone,UserPassword,group
cmnaa,TestUserx1,TUserx1,Test Userx1,Testx1,Userx1,6661,B1xgBuxxx01,UK Service Desk

Any help would be appreciated! 

Thanks!