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Dave,
please keep in mind that today is the first real working day after 
christmas. Thanks.
Regarding your questions:
1) To make an action available for mapping and as a menu item, you 
have to make it globally available by checking the respective checkbox 
for the respective action in the Action Factory. The actions are then 
instantly available under "Miscellaneous" - and - if you create, 
compile and install a complete Behaviour, under the name of the 
respective Behaviour. For step by step instructions on how to create 
globally available actions, please see the Help (section "How do I..") 
that comes with and is available within Remote Buddy.
2) Once you have finished putting a Behaviour together, it needs to be 
compiled, testdriven and installed before it is available in Remote 
Buddy. You can also find step-by-step instructions on this in the Help 
(section "How do I..") that comes with and is available within Remote 
Buddy.
3) If you are looking for a compact tutorial, I recommend watching the 
video tutorial available under "For developers" on this website. It 
shows all steps necessary to create and test a Behaviour in under 5 
minutes.
Hope that  helps.
Best regards, 
Felix Schwarz