You might, as if you retrieve your backup, your new apps will not be in it. And if you export your project and import it might complain about the version. Sometimes it’s faster to create a new module than put all your time in converting. It all depends. (Sorry, don’t have a better answer to this)
I’m not from Scritpcase, but an old user (since version 5) and used to be here around a lot. But I got my disappointments as well. As this looks like a code/char set/page issue, did you try to regenerate all your applications? (You probably have, but still…)