Hi Gail,
Put your table between section breaks. Insert text form fields in the
columns that still may be accessed, possibly with a default value.
Protect your document for form fields (Tools | Protect document... | check
the option under '2.' in the task pane | select 'Filling in forms')
Choose 'Select sections...' in the task pane and only leave the section with
your table checked.
Good luck,
Cooz