Need Help Pulling Data From A Form

I have 2 Tables and 1 form.

Table 1 has:

Product ID #, Product Name , Catalog Number

Table 2 has:

Date, Product Name, Catalog Number


with the Form, You select a Product Name (From table 1) and you can enter a date, which is entered into the Date column in Table 2. The form will also transfer the Product Name to Table 2.

Now, the problem is I can't seem to get the Catalog Number from the Form to enter into Table 2 automatically. It enters the Product Name just fine. I can, in Table 2, click the field and select the Catalog Number from a list, but that's not what I'm trying to accomplish. When a Date is entered into the Form, I'd like it to update Table 2 with the Date, Product Name AND the Catalog Number.. automatically.

is this possible? and if so, how?

I sorry I'm really new to Access, so my terminology is all out of wack. I hope the question is somewhat clear.