i can have any LCD i want. This is not a problem.

now i have 2:
Winstar WH1602A ( 2 lines, 16 char) and WINSTAR WH160A (4 x 16).

and they are both parallel as i think... right? to assure you, check:

winstar.com.tw

so this is the 2 lines 16 char LCD i used and the program didn't work.

Still again asking: should i change something related to PIC16F628A?

thank you.