Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html
Are you sure you remote is 433Mhz?
If you hold them too close you will overload the rather simplistic Rx and not get anything.
Can you post a link to the Tx/Rx units you bought please?
Also, check the Serial.begin( ) statement in the code and make sure you have the serial monitor in the IDE set on the same speed?
Thanks.. Tom.. 