I looked at the product you referenced. It is apparently a bare bones type radio, where you toggle a pin on the transmitter, and it either sends out 10 mw. sine wave, or it's off (also known as on-off keying, OOK). That means that you've got to invent your own data transmission protocol -- there aint no advanced features of any kind here.
I'd suggest that you go look up the RFM22B transceiver modules -- just a tiny bit more expensive, but they offer actual built-in data transmission through a high level library (Radiohead). They also provide 100 mw. output power, which gives you much better range.
Once you climb the modest learning curve involved, that little radio will be your friend for life.