Customer Log Sub Form

Thanks in advance for any help with this situation.

I have a table that contains all my customer information. Name, address, phone etc. The primary key for the table is an account number I assign to each customer. I am trying to make a section on my form where it displays a list of each interaction I have with my customer. A date and an interaction or case number. I made a second table with the same account number as a primary key to link them.

I have a tabbed form, on the first tab is all the information from my first table (name, account number, address phone etc.) and on the second tab I want to display the interactions for only the customer who's account number appears on the first tab of the form.

I tried putting a subform under the second tab, when I scroll through to records on the first tab, the interaction records for that account number do not appear on the second tab subform.

Any idea of how to do this?

Thanks very much,
Siirous