File manager listview icon help

; -- Created with ISN Form Studio 2 for ISN AutoIt Studio -- ;
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <GuiButton.au3>
#include <array.au3>
#include <file.au3>
#include <GuiListView.au3>
Global $currentdir1,$currentdir2
_fm_get_stuff1()
$Xplore_file_manager = GUICreate("Xplore file manager",400,565,-1,-1,-1,-1)
GUISetBkColor(0xFFFFFF,$Xplore_file_manager)
GUICtrlSetBkColor(-1,"0xBFBFFF")
$Filelist1a = GUICtrlCreatelistview("Name                                  |Size",10,100,380,420,0,$LVS_EX_GRIDLINES + 0x00000020)
$filelist1 = GUICtrlGetHandle($Filelist1a)
_arraytolist(_FM_Get_stuff1(),$filelist1a)
$path = GUICtrlCreateInput("My Computer",110,70,280,30,-1,512)
GUICtrlSetFont(-1,12,400,0,"MS Sans Serif")
$b = GUICtrlCreateButton("Back",10,70,100,30,-1,-1)
GUISetState(@SW_SHOW,$Xplore_file_manager)
GUIRegisterMsg($WM_NOTIFY,"_Update_on_click")
While 1
 $nMsg = GUIGetMsg()
 Switch $nMsg
  Case $GUI_EVENT_CLOSE
   Exit
  Case $b
   $ix = StringSplit($currentdir1,'\',2)
   $iu = UBound($ix) - 2
   $ilen = StringLen($ix[$iu] & '\')
   $iprev = StringTrimRight($currentdir1,$ilen)
   _GUICtrlListView_DeleteAllItems($filelist1a)
   _arraytolist(_fm_get_stuff1($iprev),$filelist1a)
   If $iprev = '' Then
   GUICtrlSetData($path,'My Computer')
   Else
   GUICtrlSetData($path,$iprev)
   EndIf
   
 EndSwitch
WEnd
Func _FM_Get_stuff1($dir = '')
 If $dir = '' Then
 $drv =  DriveGetDrive('all')
 Global $dat[UBound($drv)]
 For $i = 1 To UBound($drv) - 1
  $drv[$i] = StringUpper($drv[$i])
  $dat[$i] = FileGetSize($drv[$i])
 Next
  $currentdir1 = ''
 Return $drv
 Else
  $currentdir1 = $dir
  $iarray = _FileListToArray($dir)
  If @error = 4 Then Return 0
  Global $dat[UBound($iarray)]
  For $i = 1 to UBound($iarray) - 1
   $dat[$i] = FileGetSize($dir & $iarray[$i])
  Next
  Return $iarray
 EndIf
EndFunc

Func _arraytolist($array,$list)
$iubound = UBound($array) - 1
For $i = 1 To $iUBound
  GUICtrlCreateListViewItem($array[$i] & '|' & $dat[$i] ,$list)
 Next
EndFunc
Func _Update_on_click($hWnd, $iMsg, $iwParam, $ilParam)
 #forceref $hWnd, $iMsg, $iwParam
 Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $tInfo
 $tNMHDR = DllStructCreate($tagNMHDR, $ilParam)
 $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
 $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
 $iCode = DllStructGetData($tNMHDR, "Code")
 Switch $hWndFrom
  Case $Filelist1
   Switch $iCode
    Case $NM_DBLCLK
     $str = StringSplit(GUICtrlRead(GUICtrlRead($Filelist1a)),"|")
      If stringinstr(FileGetAttrib($currentdir1 & $str[1]),"d") Then
      _GUICtrlListView_DeleteAllItems($Filelist1a)
      $currentdir1 &= $str[1]
      _arraytolist(_fm_get_stuff1($currentdir1 & '\'),$Filelist1a)
      GUICtrlSetData($path,$currentdir1)
      ElseIf FileExists($currentdir1 & $str[1]) Then
      ShellExecute($currentdir1 & $str[1])
      ElseIf StringRegExp($CurrentDir1 & $str[1], "[A-z]:") Then
       $currentdir1 &= $str[1]
       _GUICtrlListView_DeleteAllItems($Filelist1a)
       _arraytolist(_fm_get_stuff1(),$filelist1a)
       GUICtrlSetData($path,'My Computer')
      EndIf
     EndSwitch
 EndSwitch
EndFunc
Func _isdrive($drive)
$id = DriveGetDrive('all')
For $i = 0 To UBound($id) - 1
 If $drive = $id[$i] Then
  MsgBox(0,'',$id[$i])
  Return 1
 EndIf
Next
Return 0
EndFunc