I’ve recently upgraded from RapidWeaver 5 to 7, and have a problem with some styled pages which contain alternate text and graphics. In Preview mode these display fine, but in Edit mode the text and graphics are overlaid, making it almost impossible to edit the pages successfully. Note that the pages displayed correctly in RW5 and have not been changed since upgrading. For an example of how the pages should look, see http://www.telgen.co.uk/families/fsios/index.html. I have a stripped down version of the .rw file which illustrates the problem which I can email or share on DropBox if required.
Malcolm Green