I would think ITB is good for a hostel to find partners to work with, etc. A lot of travel companies make the trip, and if you don't get a booth, it is pretty cheap. Its around 50 Euro. It is really good from a B2B perspective.
As for TNT, I would think it is more for the London based hostels. It is consumer facing, so it more for getting out infront of travelers. This is our first time at the TNT show, so I can probably answer this question better sometime next week, haha.
We have just sent you an email with a link to activate your account. If yu have not received this email with about 15 minutes, check your span or promotions folders.
If you continue to experience problems, please email us at firstname.lastname@example.org.