Editing planes onr routes etc...

[Tjoeker]

Are you playing v1 (0.51) or v2.11?
Your questions seem to be about v1, so I'll answer them for v1.

1. Is there a manual? 

There is unfortunately no manual on the game.
However if you look for 'The Airline Project' on YouTube you can find some videos of people playing and exploring the game.

2. I was testing the game out, and decided to order 50 A/C, anyway they all got delivered so i started making routes, even though they were all assigned A/C after a couple months half the route started to show Na/Na or something similar and 0 is all the money areas, i checked everything else, they all seem to be running just with 0 in all the money boxes??

Did you press the play button after assigning the aircraft?

3. Is there anyway to customize the frequency of the route? or do i have to put it to hard for that? (I'm playing on easy)

If you go into the scheduler, you can increase or decrease the frequency on routes.
To go into the scheduler you go to Routes>Assign airliners>click on the tailnumber of the airliner.


[/quote]
4. Lastly, i wanted to do these routes:
SIN-BNE-AKL
SIN-SYD-AKL
SIN-MEL-AKL
But after doing one it says i can't go into the destination again... anyway around this?
[/quote]

Unfortunately, no.
The way the game was created, you can only have 1 flight between SIN and AKL.

You can however create the routes as separate legs and schedule the flights manually in the correct order.