In your property tool bar there is a "Join" Icon, select this icon and click on the appropriate field in the first table and then immediately click one the appropriate field in the table you wish to link to. The word "Join1" will appear in red in the linked fields, continue doing this with all 5 tables, you will have to select the icon before each join. You can also do a Join by selecting F5 and typing in a join keyword in each table, if the keyword is highlighted in red it's a join link. I'd suggest trying this on a simple two table query to get the hang of it.