The directions above are the easiest to follow and the only correct way of flashing right now. BIN files are ROMs... but if you don't fully understand it all yet maybe you should do a little more research or posting before you try flashing. Flashing can brick your device if you don't know what your doing.
Brick = no good junk it.
Ask more detailed questions if you need more help. Thats where most all of us started out at some way or another.