With no new release of FrontPage since 2003, Microsoft have no application capable of producing a website that just anybody can use. Microsoft Expression and Sharepoint Designer 2007/2010 require HTML and CSS knowledge way above the level of amateur website builders.
To be honest, it takes a while to get used to any website creation software, but visual tools are much easier to work. So, here is a list of what I have found.
I doubt if any of the above list will import a FrontPage website. Maybe one or two will, but with FrontPage 2003 unavailable in stores and even eBay, there is little choice but to use something else.