Getting multiple font colors to "stick" in Visio 2007

Our group has inherited an org chart. In this chart, each division and
branch has a box. Within that box, the chart creator typed the name of every
employee who is in that division or branch. The employee's names have a font
color that identifies the TYPE of employee. E.g. red for government
employees, green for contractors, blue for vacant positions.

There is a lot of turnover in our organization and we are constantly having
to update the names/vacancies in the boxes. When we edit a box, the text all
turns black and we have to reapply the color formatting to every name in the
box.

Is there any way around this? Is there any way to have Visio retain the
original font colors when we edit the boxes?

Thanks very much for any help you can give us.

--
Ann Scharpf