I got "Oops" msg too when trying go to Welcome subforum. I'll alert BB.
Frankie_Flash, you could post in the Lounge if you like. The forum leaders can move the thread later if you request. Also they can delete any multiple threads if they turn up in the welcome section.
Welcome by the way. 
ETA: It appears some members are able to access and post in Welcome subform because there are post made today. I can open the thread that's top of the list by clicking on its title. I can't go into Welcome though in general. I'm using Windows IE8
Frankie_Flash, what browser are you using? Are you posting from a phone at all? These details might help BB get to the bottom of what's happening.