PLEASE PLEASE PLEASE can people say what version! Although it's the same in
principle in Access 2007 and earlier versions, the user interface is quite
different, so the question has to be answered twice!
1. Either version: open the back-end database and create the table.
2(a) Access 2003 + earlier: open the front-end database to the database
window. Click Tables->New. Choose "Link Table". Navigate to the back-end
database and click OK. Find the new table in the list, click on it, and
click OK.
2(b) Access 2007: open the front-end database to the Ribbon, External Data
tab. In the Import group, click "Access". Use the Browse button to
navigate to the back-end database. Click the bottom radio button "Link to
the data source etc". Click OK. Find the new table in the list, click on
it, and click OK.