Image URL (Main Image)
$cck->getValue('my_image_field')
Get Thumb
$cck->getThumb1('my_image_field')
Get Typo (Image with colorbox)
$cck->getTypo('my_image_field')
Get Image Titulo
$cck->get('my_image_field')->image_title
Image Alt Texto
$cck->get('my_image_field')->image_alt