Imagefield picture list

Hi guys

when we upload a picture using the imagefield.module, the div that show the picture in customized size, title and description and the checkbox for delete the picture will appear right?

i make another function inside the imagefield.module to upload a function but still i use "file_save_upload" to insert the file, i try to update the database manually, (files and content_field_typeimage), the picture get uploaded, and 2 tables is updated perfectly but the div not appear.

what should i do?
what table or function are needed to show this div? and make the imagefield know that picture?
what is the table that get updated when user update a picture?

Thanks

Paradise7777