This time, you forgot the error messages.
Where did the call to irrecv.decode() go?
I did'n understand what you meen put, was it this:
core.a(Tone.cpp.o): In function __vector_7': C:\Users\Hans Kristian\Desktop\arduino-1.0.1\hardware\arduino\cores\arduino/Tone.cpp:523: multiple definition of __vector_7'
IRremote\IRremote.cpp.o:C:\Users\Hans Kristian\Documents\Arduino\libraries\IRremote/IRremote.cpp:311: first defined here