Infraferd Text Communication

Hi fellow arduino lovers,

I'm working on a IR text communication library but I need some help.
I have mapped out the IR codes to hexadecimal values.
Also I'm using the IRremote library.
But since this is my first library I need some help setting it up.
I have read the tutorial on arduino.cc but I cant get it to work.
All I ask is a push in the right direction.
In the link below you will find a excel with the codes.
fimi.biz/ir.xlsx
So If someone could get a example witch the character "a" and show it to me I will add the other characters.
And whan this library is done I will share off-course!
Thanks is Advance!

Post your library and we'll see if we can find any errors.