Just a hint, maybe u should have posted this in the "Wishlist" section
Now onto your request... don't be shy to provide a little more info. It looks like what you want is an automated LAN backup utility running on the N5200?
As far as porting Amanda across is concerned, there is a potential complication with it's dependencies. Omega has made Perl, but not GNUplot and I'm not sure if the other dependencies are easy to make available. And once you've managed to get all of that sorted out you really need to have a web based interface to use the module which I didn't see on the Amanda site when I took the quick look.
As you may have noticed, the community is young and very limited on the module developer side, so the more you can do to help yourself (and then others) the better. And you're more likely to have your wish fullfilled if there's a decent number of other users that have the same wish as you. Good luck getting that support Hopefully u have more luck than me and my Joe editor request
I'm gonna try learn how to play with Linux a bit more in a bid to make modules of what I want, but it's gonna be a looooong sloooooow process ;D