>I have a project that I wrote in foxpro 2.5, I made a mistake and opened it in foxpro3.0. Now I can no longer open the project in foxpro 2.5. Is anyone know what I need to do to convert the project back to foxpro 2.5 without loosing any data.
>Any kind of help would be very much appreciated.

Create a new project, then put your main PRG or form in it and compile. This should restore the project for the most part.