Stationary bike seat change!?

Ok i have a older style marcy upright stationary bike, TMI, i stopped because for lack of better words it rubbed my tain so raw i could hardly walk. Whats the point of looking fit it you cant walk :P SO i want this bike seat http://www.ebay.com/itm/Schwinn-No-Pressure-Bicycle-Seat-New-/310871446717?pt=US_Saddles_Seats&hash=item486161d4bd but idk if you can take the old one off and put this one on. so i wanted to know if people do this or just get seat covers? i like the idea of no banana section of the seat. thanks in advance!