I did notice i was missing the .png from the source.
Set fs = CreateObject("Scripting.FileSystemObject")
fs.MoveFile "C:\Rendermation\Renders\perspective_" & folderIdx.name & ".png", "C:\Rendermation\Renders\" & folderIdx.name & "\"
But i still get the same error...
"Microsoft VBScript runtime error"
"Object required:'folderIdx'"