Crystal Reports Conversion

We are in the process of going from 9.04.507A - 9.05.606 and I need to make sure all of our Custom Crystal Reports are converted is there an easier way than rewriting all of these reports? I have tried going in an changing the ODBC data base all of my non text report disappears and Crystal adds a 1 to the end of all of the data making it impossible to just pull fields over from the old form any help would be greatly appreicated.