Hi, i just have XE-A102, and im totally mad about it

(coz im a newbie with it)
I cant understand in every explanations and samples in all its manuals.
I just wanna setup a simple database, no tax at all and no secret code.
Heres the lists :
- 21 item of drinks
- 14 item of takeaway foods (boxed food)
- 20 item of portion foods
- 13 item of softfoods
Ive tried to set it up like this. Ive programmed each list to :
- 21 item of drinks to 1-21 plu's and dept 1
- 14 item of takeaway foods (boxed food) to 1-14 plu's and dept 2
- 20 item of portion foods to 1-20 plu's and dept 3
- 13 item of softfoods to 1-13 plu's and dept 4
The synthax ive used like this :
(1) -> plu -> price -> dept 1 ------ the display went to 02 so ive entered the next price to its dept. Ive entered it all one by one.
But.....
The printout wasn't show all the synthax ive entered. Its just showed some of dept 4 and some of dept 3, some, its just some, not all part of dept 4 nor dept 3, the dept 1 and 2 wasn't showed up at all.
So, anyone can provide me all the best solutions of my problem ? Pleaseee...
Thanks....