Adjustment of code to run on Arduino mega 1280

Hi everyone,

I am not yet skilled in programming since I haven't yet got my arduino, it's a bit daunting for me so I ask you here if you could help me to adjust the code which is written to run on Arduino Pro Mini ( http://www.sparkfun.com/commerce/product_info.php?products_id=9218 ) so that it could run on Arduino mega 1280...

I guess some input, output pin numbers should be replaced...

Can someone of you skilled members please help me out...
Oh and the project is Multiwiicopter ( http://radio-commande.com/international/triwiicopter-design/ )

Here is the link to the source code and GUI:

http://radio-commande.com/wp-content/uploads/2010/09/MultiWii1_3.zip

Thank you for your help!!