I believe that with Tapas's system, you can't upload a new page, and place it earlier in the timeline of your current pages. IE, if you have ten pages, and redraw the first page and upload it as it's own episode, that episode will come after page ten.
However, if your new pages still match with your old pages, an easy solution is to edit the old episodes and replace the old page with the redraw. This would preserve your comments, views, etc.