Inverted navigation tools?

[Enchanter]

I've been struggling with the various tools in the Nav screen. It seems the protracter and various other tools to determine heading are..well...backwards. Is it just me? Or am I missing something?
I need some advice on decent mods to calculate AoB and Target Heading. I've browsed throught the newbie guide and downloaded one or two of there things, but it seems those are the inverted tools! Help?!

Any advice on AoB calculation would also be appreciated. And no suggestions I run the English Channel at flank! Dammit I'm running SH3 with the NYGM mod installed via JSGME, not that I notice any difference... patched up to date too. Another thing, wasn't the patch supposed to fix the fact that the idiotic Watch Officer always had to be chased back to the bridge with a broomstick?

I know this is posted a million times a day, but yeah...