Well,
I managed to get a VC2005 and to fierce fight to get my application recompiled with FDK8.
Then, to let it run, I had to face funky errors like missing icuuc28.dll, icudt28l.dll, icuin28.dll that are actually shipped with FM8 but not into the right place (system32). I wonder if that files will have to be copied inside the system32 directory for each workstation that will need to run my application!

Besides this, the application finally run and in a certain way it worked! What's shocking is that after the PDF creation the FM8 crashes abruptly giving a nice set of new errors:
1 - The font information for your system has changed. This change may affect the format and output of your document(s);
2 - Internal Error: 8004, 6343724, 8484240, 0;
3 - The function XXXX referenced memory that was "read" (or something like that).

I wonder what's going on!
Of course the fact that the PDF is created until the last page it's a good new, but all that bunch of errors are quite scaring and however not quite a sign of stability.

Do you know the new error I am getting?
There's something that can be done to further inspect the problem?

Thanks alot,
n3u.