are you just copyin and pasting my code or are you trying to point to the right target?
Copying and pasting will result in nothing because I doubt the t3-t1 values reside in your button. You need to point them to the mc where the input values reside.
here is an example if your input fields were in a mc instance named 'myForm' on the root timeline.
rsvp_lv.content3 = _root.myForm.t3;
rsvp_lv.content2 = _root.myForm.t2;
rsvp_lv.content1 = _root.myForm.t1;
If you still can't get it to work post your fla.