As far as my limited understanding of the Rokbox plugin goes, it seems like this add-on would not be appropriate for it. This add-on shows the "ask a question" form WITHIN the existing page, while Rokbox shows content in a lightbox ABOVE the existing page. One advantage to having the form within the page, is that the user can view the entire flypage contents while composing their email (including copying and pasting of any text). If you put the form in a lightbox, the user cannot view the entire flypage and cannot copy/paste. But that's just my opinion - perhaps I'm not understanding what it is you're trying to do.