Can't see a picture which combine from CImageList

Hi,
I have a list of pics which combine to one picture ,and i can see it on the Image rect
when the background is not painted,but if i paint the background i can't see it any more
i just see now an empty space where it should be.
What should i do?
///////////////////////Fixed code after your help//////////////
CRect rect;
CRect rect1;
m_cMouth.GetWindowRect(&rect1);    // screen coordinates
 ScreenToClient(&rect1);            // client coordinates
CPaintDC dc(this);
dc.ExcludeClipRect(rect1);
CPen p[64];
int i,factor;
GetClientRect(&rect);
factor=rect.bottom/63;
for(i=0;i<64;i++)
   p[i].CreatePen(PS_SOLID,1,RGB(250,120+i*2,0));
for(i=0;i<rect.bottom;i++)
    {
      dc.SelectObject(&p[i/factor]);
      dc.MoveTo(0,i);
      dc.LineTo(rect.right,i);
   }
/* If i put this code in comments i can see the pics*/



///////////////////////////////////////////////////////////

CPaintDC dc(this);
CDialog::OnPaint();
// Draw into memory DC
m_cMouthList.Draw(&dc, 0, m_cMouthRect.TopLeft(), INDEXTOOVERLAYMASK(m_iMouthBmp));
if (m_iMouthBmp % 6 == 2)
 {
    m_cMouthList.Draw(&dc, WEYESNAR, m_cMouthRect.TopLeft(), 0 );
 }
else if (m_iMouthBmp % 6 == 5)
 {
   m_cMouthList.Draw(&dc, WEYESCLO, m_cMouthRect.TopLeft(), 0 );
 }


///////////////////////////////////////////////////////////////////////////


InitMouthImageList()
{
     m_cMouth.GetClientRect(&m_cMouthRect);
     m_cMouth.ClientToScreen(&m_cMouthRect);
     ScreenToClient(&m_cMouthRect);

     CBitmap bmp;
                m_cMouthList.Create(CHARACTER_WIDTH, CHARACTER_HEIGHT, ILC_COLOR32  
                |ILC_MASK, 1, 0);

     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICFULL));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH2));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH3));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH4));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH5));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH6));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH7));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH8));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH9));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH10));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH11));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH12));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICMOUTH13));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICEYESNAR));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     bmp.LoadBitmap(MAKEINTRESOURCE(IDB_MICEYESCLO));
     m_cMouthList.Add(&bmp, RGB(255,0,255));
     bmp.Detach();
     
     m_cMouthList.SetOverlayImage(1, 1);
     m_cMouthList.SetOverlayImage(2, 2);
     m_cMouthList.SetOverlayImage(3, 3);
     m_cMouthList.SetOverlayImage(4, 4);
     m_cMouthList.SetOverlayImage(5, 5);
     m_cMouthList.SetOverlayImage(6, 6);
     m_cMouthList.SetOverlayImage(7, 7);
     m_cMouthList.SetOverlayImage(8, 8);
     m_cMouthList.SetOverlayImage(9, 9);
     m_cMouthList.SetOverlayImage(10, 10);
     m_cMouthList.SetOverlayImage(11, 11);
     m_cMouthList.SetOverlayImage(12, 12);
     m_cMouthList.SetOverlayImage(13, 13);
     m_cMouthList.SetOverlayImage(14, WEYESNAR);
     m_cMouthList.SetOverlayImage(15, WEYESCLO);

     return TRUE;
}