Getting a new TT to show up in as a new Network is not really a problem anymore.
After installing MyTT you can access you TT using the default network address assigned by the TT.
If is basically the same what you get when you add new content using MyTT - check your browser that is the local IP of your TT
But only the free directories and files can be accessed on that server, all other things require a secure SSH connection with code and passphrase.
The code can be found on the device, inside MyTT and maybe more places, but without the correct passphrase it's over here.
TT has now published the sources for all NC's and the applications for PC and Mac.
The encryption should be based on a 1024 bit RSH / Hash code.
So all you need is find out exactly what encryption mode is used for RSA, how the hash codes are generated and signed and simply find the private key using the documented algorithms for RSA attacks.
If you solved the first bit, finding the private key should only be matter of a few hours if you happen to have access to
[Please Register or Login to download file] ,
[Please Register or Login to download file] or maybe
[Please Register or Login to download file] .
In case you sneak your code into the Seti network it be able to get the key in 2 or 3 weeks, but I don't think they let you do that.
A good Linux-cluster with a few thausand modern machines connected should still find the key in one or two years...