Cheque Printing using Script

Dear all,

My requirement is to print Cheque details in a Bank Cheque. I need to Print only the following fields

1. Vendor name

2. Amount in words

3. Amount

4. Invoice number

I found the standard script for Cheque is F110_PRENUM_CHCK. Now I have created new script with 4 new windows for the separate fields. I have copied the text for these fields from the standard script.

Now, my problems is When i am printing Cheque, the system throws following error.

In form ZF_FI_CHECK / window MAIN , the element 510-C (Text-C) is missing
In form ZF_FI_CHECK / window MAIN , the element 515 (Heading) is missing
In form ZF_FI_CHECK / window MAIN , the element 520 (Carry forward above) is missing
In form ZF_FI_CHECK / window MAIN , the element 525 (Line items) is missing
In form ZF_FI_CHECK / window MAIN , the element 530 (Total) is missing
Output of the relevant forms is defective

Now,

1. Should I need to make Z-copy of the Cheque program for this purpose?

Can anyone guide me the appropriate steps to develop scipt for the Cheque for this requirement?