foxpro

hi
well im developing a project on library management system on foxpro. the project is developed consisting of book entry, book issue, late fees, book loss,and book report but ive been told to add memebers table in it plus auto incerement of the book id when it is being enterd, proper validation of price i.e. it should show proper errors if proper pricing is not there, validation on dates i.e. it should show errors if it increases 31 days and it should pick up the current date automaticaly when being filled plus when book issue dto someone it hould automatically generate the return date say after ten days.
basically they all the technicalities to be there. but ive developed a basic project in which evrythng has to be done manually and they want evrythng automatic. please help me on this . it is really imp.
regards.