linke fields in tables to make estimates.

I am posting sourcecode . I need help linking tables and fields together for making estimates. Table (customerinfo) field (EstimateID, CustomerID); Table (lineitems) ? ? Fields(ItemID, CustomerId, EstimateID). I need a way to like these porperly so I can make estimates and linkthe estimates ? to the customers etc. ## Deliverables Help me fix the code so I can make new estimates and link each estimate to the correct customer etc. * * *This broadcast message was sent to all bidders on Sunday May 24, 2009 10:09:48 AM: Please look at new source. When you press the new button you have a choice of Estimate, Customer. So what I need is when you press new Estimate you will fill out the autoinfo and there we need to link the auto info to the customer info and the line items info.