Admin module error

[ballot]

hi i made a table as named ps_flashbanner and thats what it contains :

id_flashbanner int(10) UNSIGNED auto_increment
sure int(10) UNSIGNED
title varchar(128) utf8_general_ci
text varchar(128) utf8_general_ci
url varchar(128) utf8_general_ci
resim varchar(128) utf8_general_ci

(sure : time,resim = image)

and i tried to port AdminTaxes.php module to adminflashbanner

http://pastebin.com/e0HeLPw4

http://i53.tinypic.com/2w3xq41.jpg

i dont have any error at listing
but i cant update / retrieve data of the i want to edit