Interfacing Arduino Mega with 2.8 TFT by Itead Studio

hi!
i doing project involves interfacing arduino mega 2560 r3 2.8inch tft touch screen itead studio.

the link tft display
http://imall.iteadstudio.com/im120417020.html
the user manual is
ftp://imall.iteadstudio.com/im120417020_2.8_tft_lcd_touch_shield/ds_im120417020_2.8_tft_lcd_touch_shield.pdf

i trying use utft , utouch libraries henning karlsen
http://www.henningkarlsen.com/electronics/library.php

the display included in list of supported models utft , utouch libraries.

the problem this:

while assigning various pins during initialization of display, realize user manual not have pins touch_cs , tft_reset.
without assigning these pins initialization code, display not running example codes given in utouch library.
i have changed model number itdb28 , assigned pins in initialization code per datasheet of display.

also, not using jumper cables, attaching shield on top of arduino mega. itead studio says shield compatible mega, not entirely sure if setup work, or arduino giving it's output other pins.

i have attached initialization code here, random pins assigned missing ones mentioned above.

code: [select]

utft        myglcd(itdb28, a5,a4,a3,a2);   // remember change model parameter suit display module!
utouch      mytouch(a1,41,a0,8,9);

well able run utft library following instructions here
http://forum.arduino.cc/index.php/topic,141697.0.html

but still not able use sd.h or utouch.

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