I have an custom developed web part, which can be sucessfully added
to windows share point services site using the Import web part
option provided.

If I open the site in frontpage and try to add the same web part it
gives me an error.

"A web part or web form control on this web part page cannot be
displayed or imported because it is not registered on this site as
safe"

could anybody please guide me how to add webparts using FrontPage,
as I would like to add an webpart to the NewForm.aspx page of the
Disscusion web part.