Read Status Manager using PSI in Project Server 2007

I am struggling to read the Status Manager ResourceUID for each Task in our implementation.

I can loop around each project and task in project - but can't find the right field for Status Manager. At least not in the Drafts area.

Any pointers please? I have seen posts on the web saying there is a bug and the field is not available - despite the SDK documentation.

My current PowerShell code having established connection to Project Web Service:

$EMPTYGUID=[system.guid]::empty
$list_projects = $pwaServiceAssembly.ReadProjectStatus("$EMPTYGUID","WorkingStore","",0).Project

Write-Output "Found " $list_projects.Count "Projects"


$results = @()
 
# Main loop  
# loop around the items in project table
# loop around the items in task table 
# add a record to results for each task 

 foreach ($project in $list_projects)
 {
    write-output $project.PROJ_NAME
# 0 for drafts, 1 published, 3 reporting)    
    $ProjectData = $pwaServiceAssembly.ReadProject($project.PROJ_UID,0)
    $Tasks = $ProjectData.Task
    
    write-output $Tasks.Count "Tasks"
    if ($Tasks.Count -gt 0)
    {
        foreach ($Task in $Tasks)
        {
            write-output $task
            $record = @{
            proj_uid = $project.PROJ_UID
            task_uid = $Task.TASK_UID
            statusmanager_uid = $Task.StatusManager
            }
            # add to array
            $results+= New-Object psobject -Property $record
         }

     }
 }

MikeCro