Prompt stuck with creating update script

hi guyz I'm totally newbie here ....
I was trying to make a flashable rom.zip via dxda kitchen BUT when I tried flashing I got message syaing "Update Failed" !
I searched arround google and come to know this problem arise due to UPDATE BINARY AND UPDATE SCRIPT
then from xda (thanks to all here ) i come to know that [COLOR="rgb(139, 0, 0)"]UPDATE BINARY[/COLOR] can't be created by us but the question is IS THE UPDATE BINARY SAME FOR ALL DEVICES?? OR DIFFERENT??
AND the second qus i am suffering from is "HOW TO GET MOUNT LOCATION OF PARTITION FROM DEVICE SO THAT I CAN CREATE UPDATE SCRIPT?
If anyone here can help me with these stuffs I'll be very thankful to him!