How to move checkeditems file in listbox to a folder?

hi. im actually making a desktop cleaner that can move the files and icons to a folder inside the listview box.
i can make the listview box filled with files contains at the desktop
and i can make a new folder which suppose to be move the files on that folder

i have 3 problems:

1. is how to get last access time of the FILE and put it column2 of the listview

2. i want to view that are unused icon and document last week, 2weeks, 1month and 2months by selecting at the combobox

3. how to move checkeditems file in listbox to a folder?


i've been researching for 2 days and not posting a topic and now im frustrated
help me.. thanks in advance.

[CODE]
Imports System.Runtime.InteropServices 'For APIs
Imports System.IO 'Import System.IO For File Operations
Imports Microsoft.Win32 'The Registry stuff
Imports System.Windows.Forms.Application
Imports System



'TO view files inside the listbox

Public Class Form1

  Private Filenames() As String

  Private Sub LoadFilenames()

  Dim Desktop As String = My.Computer.FileSystem.SpecialDirectories.Desktop.ToString()
  Dim FilePath As String
  Dim NumFiles As Integer
  Dim TruncName As String

  For Each FilePath In Directory.GetFiles(Desktop)

  TruncName = FilePath.Substring(FilePath.LastIndexOf("\") + 1) 'Remove Path From Name

   
  ListView1.Items.Add(TruncName)

   
  ReDim Preserve ScreenNames(NumFiles)

  FileNames(NumFiles) = FilePath

  NumFiles = NumFiles + 1 'Increment File Count

 

  Next

  End Sub

  Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
  LoadFilenames()
  End Sub


TO CREATE A FOLDER ON DESKTOP

 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
  Dim Desktop As String = My.Computer.FileSystem.SpecialDirectories.Desktop

  If Not My.Computer.FileSystem.DirectoryExists(Desktop & "\Unused Desktop Icon and Documents") Then
  My.Computer.FileSystem.CreateDirectory(Desktop & "\Unused Desktop Icon and Documents")
  End If

   
    With Me.ListView1
  For i As Integer = 0 To .CheckedItems.Count - 1

  .Items.Remove(.CheckedItems(0))

  Next i
  End With

  ' If di.Exists Then
  ' Indicate that it already exists.
  ' MsgBox("That path exists already.")
  ' Else
  ' Try to create the directory.
  ' di.Create()

  '  End If

  'TextBox1.Text = di.FullName


  End Sub
[/CODE]