Here you're looking at two records in my Issue Tracking database. Looks a lot like Contacts on the iPhone, doesn't it? You can search by typing search criteria into the field at the top of the page. Want to add a new issue? Tap the Plus sign.
To modify any of the fields, I go to this screen. I can add new fields as well by tapping the plus sign, or move the location of one of the fields in the data entry screen by tapping the bars on the right side of each field and dragging the field up or down.