Customize WordPress Theme and then Transfer Data

I want to customize a WordPress theme called "JobPress". Keep in mind many of the requests below can be achieved with JobPress's built-in functionality, which you can verify by visiting the administration area in the JobPress demo and reviewing the JobPress Pro sub-menus: [login to view URL] Five new fields will need to be created - each one with different kinds of inputs. Then data will need to be exported from one MySQL database and imported into the JobPress database (or whatever method you think is best). Some of the fields from the previous database will have different names in JobPress. Some will not even exist, which is why the first step of this project is to create five fields with various inputs. Last step is to customize the Search and Job Alert features that is part of JobPress.