91 Cutlass Supreme blinker/flasher where?

Please help! I really hate to sound like a dufus, but other than putting in gas and checking the oil, I know nothing about car maintence.

My '91 Cutlass Supreme's 'blinkers' quit working. The lights come on when I have the headlights on, but they do not 'flash' anymore. Where would the piece to be replaced be located? What would this piece be called? Would this be an 'easy' fix, or would I have to take it to a shop? What would be a 'reasonable' charge for fixing this?

Thanks!
glitchgal
(who wishes she took autoshop instead of latin right about now)

On my 1990 Oldsmobile Cutlass Supreme 3.1L V6, the flasher is located under the steering column. You have to remove the cover below the steering column (not the steering column itself) as it is hidden good. It is a cylindrical shape and you won't miss it.