The terms most Access developers use are "Front End" and "Back End". The Front End contains all of the interface objects (forms, reports, code, etc.) and the Back End contains only the tables with the data. I think that's what you mean here, correct?
If your users are adding new records via a form in the Front End, but not seeing them in that form later, the problem may be in the way that form is set up.
Look at the property sheet for that form in design view. Select the Data tab. Take a screenshot and show it to us, please.