WebPlus X6: Webplus creates different address locations for my copied site

I have just noticed that when Webplus publishes it publishes all the separate webpages into the root directory of my public folder whereas my old software ExpressionWeb published each of the webpages into their own separate folders and those folders sat on the same level as the index.htm

Presumably this means that when I start publishing the same website (that I have copied over to Webplus from ExpressionWeb the address for the page will change:
i.e.

http://websitename/contactpage/contactpage.html is typical in ExpressionWeb

will become

http://websitename/contactpage.html when published from WebPlus x6

surely this will mess up my Google ratings as Google has been pointing to the old location for years and now has a new location? Or will their bots sort it out and just figure that it’s the same .html file with the same content and point the search engine at the new location?

What will happen? – I’m a bit worried.

Is it possible to force WP to put html files into folders of the same name as EW has? (should the worst case happen and I lose google ratings – but I must admit I like the shorter address that EW will give me)