Problems in Z Reports in ECC 6.0

Hi,

We r upgrading the SAP from 4.7 E to ECC 6.0 and facing few problems in Z Reports in New Version..Like...

1)..Incorrect value in the dynamic table..

2)..Literals that take up more than one line not permitted.

3)..Missing parameter with PERFORM.

4)..Error in ASSIGN statement in program "SAPLSDSD".

5)..Not Unicode Convertible.

Please help me out of these problems..

Regards,

Anil