If I'm not mistaken, those WYSIWYG editors actually make the HTML for the pages. So you should be able to just grab the physical HTML files (And images, javascripts, etc) from your old webhost, download them, then upload them here to your new hosting space without losing any coding.
That is, of course, assuming that the PageBuilder you used just generated the HTML on the spot and didn't generate it when you loaded the page (Highly unlikely).