i just took a look at that message board. those hot topic goons think they are so badass, mouthing off to you like that. there's nothing badass about pop punk. i took a look at green day's site to see what all this fuss is about because i hadn't heard anything about this new network band. i pretty much live in a cave filled with metal and prog cds, so anything going on in the land of pop punk usually misses my radar screen. that really sucks that they stole your name. they probably won't listen to you though. they've put too much money behind the marketing for that name. you'll probably have to change your name like opprobrium did when incubus stole that name. or just keep the name and promote yourself as the real network. that's what i'd do.
Go like new Mayhem and be The_(True)Network. On your logo just insert a tiny "true" on top of the underscore. Or murder the guys from Green Day and steal the documentation that gives them the rights to the name if they actually do.