microsoft access course - Access - Forms

Hi there - I am still struggling with have the one page for all data entry relating to purpose of database: customer history and contact managment. I need to ideally have a one page view where a data entry person can just fill in all details in relation to one person / one company. Presently, there are a number of tables and sub forms and sub reports that need to be brought into the main data entry form, creating confusion for me as the database designer and my colleagues who will be entering data. I think I need to have another developer / trainer come to our offices, and help me finishing off the building database.
Thank you!