Oh I use BookDesigner to make these books so I can just use the source HTMLs to make a fb2?
Normally I make the book in Bookdesigner then save as HTML import to Calibre and make a MOBI file so I would save it as FB2 instead correct?
I notice epubs made using calibre The links don't work they take me back to the beginning of a book.
Good thing I saved all my source files! I got lots of book to convert now.