I played through the new content, and I think the below code should unlock all the scenes in the replay gallery.
To unlock all scenes in Replay Mode, replace "C:\Users\%username%\AppData\LocalLow\OppaiComics\FlirtyF\Replays.txt" contents with this:
Code:
045769045756058756057523046758804356790437915057698304578360495638097314501234560967346098896707594650999369056798706325980745683045788809999990666536047815601114570756663078915407854630555645012456307457240758866074589608746530888978075467807353350775789057556309967670399785055575706445560377373046777609699690762222078666507899960748649075556940777346077854620448966055563501111240117644099966605555560916665075444504444110777564077553307644570552235099987604575540556455076686605554640828255