Handling checkbox on the detail and update pages of webassist

When you create an insert page you can choose checkbox and the checkbox data input I have chosen is:

1 for checked
0 for unchecked

After insert a record the detail page with display all the checkbox entries as 1s.

1. How can I display these 1s as Yes.
Please explain step by step and as simply as possible because my php knowledge it still growing.

2. On selected update all my checkbox are blank, i.e. no ticks, even through I inserted them.
If a checkbox = 1 on insert how do I get this to display on the update page as a tick when the record is requested.
Again, lease explain step by step and as simply as possible because my php knowledge it still growing.

Many thanks,
Neil