If you were bumped off your flight by the airline and at no fault of your own then you should be entitled to free "silverlining" tickets.

Now I've done this a couple of times when my time really isn't of the essence...I will purposely let the airline I am travelling with know that I do not mind being bumped for the next possible flight...and when I am I am given back a "silverlining" ticket for the amount at which the previous flight is for. I have done on so with Alaska, Canada3000, Air Canada, WestJet Airlines, but not with Continental.

You are entitled to receive benefit for your time lost...enquire at the airport and I'm sure you will be compensated.

Aragorn