I just got my pronto neo a week ago so I don't know how to answer your question directly, but see post 5 to give you an idea of what the hex code should contain in addition to the numbers you have above:
[Link: remotecentral.com]

You may want to look for the complete hex code here:
[Link: remotecentral.com]

Once you know the entire hex code, you should use neohacker (in the files section or on sourceforge.net) to open your ncf file. Find the page and button you want, open it up under actions and either learned code or Normal IR, then paste in the hex code. Click Save Parameter, then do a file save, then open the saved file in NEOedit and download it to your pronto neo.

Like I said, I don't know the hex code system enough to explain it but I hope the above helps you.