I wanna to make the flash file. Can I make in it, if yes than how?
Tux Paint does not have the ability to create Flash files (I assume you're asking about slide-shows). There are external tools you should be able to use to create these, though I don't know them personally. Tux Paint saves its files in PNG format, and they are easily accessible (see, e.g. http://www.tuxpaint.org/gallery/submit/ )