My sites were hacked this morning. I have deleted all files and reuploaded wordpress and some other files. However I cannot log in to my dashboard, it doesn't recognize my username and password. When I try to get my password emailed to me it says the email address isn't registered. I've edited wp-config so I'm not sure what the problem might be.
I've read all the other threads regarding hacking but I haven't really come across my problem. I'm completely at a loss of what to do so I'd really appreciate any help.