New nf login - cannot get into old account anymore

It seems my account is gone now and now shows me as a "newbie". Where did all of my info go?? Is it gone forever? I have been waiting on several things to be fixed with my old account and I need all of those posts back. Please let me know how to delete this new account that your directions said I needed to create and was never tied with my old account. I just tried to send a message to my old account and when I try and open the message I get an error stating access is denied. How can this be resolved?