DataAssist Wizard created Insert and Update pages that do not function

Thanks for the helpful information.
I replaced the file as they suggested and it is working correctly.

One other question:
When I run DataAsisst again for the same page type (e.g. administrative), it adds another form container to the products_update, products_insert, products_search, etc. pages.
When I view the products_Insert Page for example. At the top of the page is the Insert container containing the parameters I initially entered into the Data Assist Wizard the first time. At the bottom of that container form are two buttons, Insert and Cancel.

Underneath those buttons is another container which shows a similar form containing my updated parameters that I entered into Data Assis Wizard the second time.
If I need to re-run data assist wizard to adjust one of my parameters how do I get it to override the first version so that the page only has one container form on it?

thanks,
Danielle