Confirming flights?

[Rivergallery]

Hi I bought plane tickets from cheapseats.com and wanted to know if we still have to call the airline to confirm flights.
Last time I flew things were alot different. and we had to call 24 hours prioe tro the flight
Any help would be great thanks

 

[Judy from Boise]

did they send you your confirmation #? if so you can use it online on the airlines web page to check times and book seats