Not sure what you mean by FrontPage being "discontinued". I have used FrontPage 2003 since, well, 2003 with no problems. I do stay away from FP extensions.

Maybe not discontinued, but my school upgraded to Office 2007 and Frontpage was no longer included while SharePoint was.

I have a number of items around my house that have been discontinued by their manufacturers. It doesn't stop me using any of them, I just can't buy new ones.