ABAP Releases

Hi everybody,

I am developing ABAP in Eclipse Luna and must extend an ABAP program developed by a former team.

The following points are important to understand my tasks:

1. The program was developed on SAP NetWeaver Release 7.0
2. The program must now run on SAP NetWeaver Release 7.4
3. The program is very complex and have to call many FMs (Funktion Moduls).

Questions:

1. I have to realize that some IMPORT and EXPORT parameters of SAP-FMs are not the same between the two releases.

        Can you please help me in finding a good (full) documentation between two releases?

1. Are there any ABAP-converter tools / program for releases?
2. Is there a way to display on Console all the names of the called FMs of the program, without having to implement it myself with WRITE?

I appreciate any help, many thanks!

Best,

Ali