Navigation Pack programmes ported from HP 67

[mobi323]

I have copied two programmes from the HP41C Software Library.
These programmes are - (1) Great Circle and Rhumb Line Navigation, and,
(2) Bearing Line of Position.
My limited experience with running programmes is that Initial data to be used in the programme is either stored on the stack, or in storage stacks, or the programme pauses and asks for the data as it is needed by the programme.
My problem is that I don't know how to put that data in.
I have gone to the original programme from the HP Museum pdf of those programmes but I am not helped (it may be my inexperience).