Restaurant Automated Menu

Question

I am working on this and i have got all the listbox items to textbox and everything.

The problem i have is, we are to select a table number and date, and from that, it should bring up previous orders from yesterday. How do i do that?

The other thing is when i select an item how can i add up the total price of all items into a textbox at the botom?

I will upload my Source code, its a bit of a mess im sorry:(