I started out with the "Time & Billing" template and I think this might be the problem. I actually had it working at one point, but for some reason it would populate the next line with the same information. Any field that I tried to change would change all of the other lines as well.
When I tried to change the relationships, something happened and not it just won't work at all, not matter how I define the relationships/value lists.
I think I'm going to start from scratch instead of using the template. The only thing I'm not clear on it how make it so the consultant enters their data (enter date, select customer, project list appears, select project, enter hours worked) and then the next line appears so they can enter the next project. I want it to work like a table, where they reach the last data entry point and the next line appears.