Hi Alessandro,
The site looks great and I am sure will be a good resource, not only for us vassal players but the gaming community in general, however, one thing that worries me is copyright. It may be a good idea to ask GMT for permission to use the logo and to publish the official scenarios. I would hope that our group would not abuse it, but in it's current form, anyone could access all of the rules and scenarios without needing to purchase any of the games or even visit GMT's web site.
I am not trying to put a damper on what appears to be a lot of hard work, well executed, but rather trying to protect you from possible legal action by GMT.
If GMT are upset they may even withdraw their support for the Vassal module. But given the recent sponsorship of tournament prizes, I think they would be receptive to the idea of the web site if approached.
Cheers
Chris
and thanks once again for providing such a wonderfull tool. 
