This is what you get according to Virgin Media:
Music Extras:
* Download & listen to millions of music tracks
* Watch the latest music videos
* Exclusive Internet radio stations without ads
* Backstage interviews with the stars
* Napster - Get a 40% discount off the Napster digital music service
* Sonic selector - Get 3 free music downloads a month from a choice of over a million tracks
* Vidzone - Watch the latest videos on-demand
* Video TV - Watch classic music videos when you want
* Music Choice - Choose from 16 uninterrupted radio stations
Games Extras:
* Online browser games to play instantly
* Download 100s of new and classic games
* Choose from sport games, shoot'em ups, driving action, puzzles and
* Fantastic games tips and cheats
* Lego - PC games to immerse yourself in the world of LEGO
* Freeloader.com - 100s of new and classic games
Photos Extras:
* 15 free prints to your door every month
* 1GB of online photo storage
* 10% discount on orders over
* Share pictures online with your friends
* Create personalised gifts
* PhotoBox - Award-winning online digital photo service
Kids Extras:
* Watch, play and learn with the Tweenies
* A world of authoritative factual information
* 1000s of articles, video clips and more
* Award-winning curriculum learning resources
* Watch classic video clips
* Tweenies - Exclusive Tweenies videos on demand
* Encyclopaedia Britannica - The world's most famous learning resource
* Espresso Education - The UK's number 1 in-schools education service
I've just tried and I can login fine. Not sure why you can't sign in... are you signing in with the account email address?
http://www.virginmedia.com/broadbandextras/