Imagine Photo Help

What i am trying to do is use Imagine Photo to open a movie and export it to a folder as a bunch of bmp files named movie.bmp, movie1.bmp…etc. I already have a script to do this, but I want to change the framerate the bmps are exported at, for example 30 to 10 or 25 to 10 or whatever, but i don’t want to export the movie again, you can do this with quicktime, but can you do it with Imagine Photo? Any ideas?