Why would it?
While that content was great in its day, it's quite old by today's standards. There are other websites, such as Jointed Rail, which are good replacements for VMD.
Why don't you show a registered version next to your username?
Are you using a mobile product, or do you have technical difficulties?
If you registered on Steam, have a previous login, or other issues with your registration, contact the helpdesk at the link I have provided for your convenience.
http://support.trainzportal.com/