Image as various size in Drupal 6

problem: display images in various size in content page in Drupal 6

modules needed:
ImageCache

Add the display size:
Site Building -> ImaeCache -> Add new Preset -> Add Resize -> save

Add a content type for this display
Content -> Content Type -> Add content Type

manage fields of the content type
Content Type -> the content that wanted to edit -> Manage Fields -> Image | field_image | File | Image

Content Type -> the content that wanted to edit ->Display Field -> choose the respective settings you want to diplay

to disable author information
Admin -> Theme -> Configuration -> disable the "Display post information on"