Help with travel planning in London

[Al 10000]

1-4 travelcard still exits but only on Oyster as £7.70 daily price cap

http://www.tfl.gov.uk/assets/downloa...s-jan-2014.pdf

I have borrowed an Oyster card,can i use it on the train from Victoria to Peckham Rye,or is just for underground trains.

Thanks Alan