I also have the problem of logging in.
I was able to create wp and log into the admin panel the first time. I changed the password and apparently mistyped it was I have not been able to get back in.
I have requested a new password several times and received one each time. Howver none of them work. I get the error message that it is an invalid password.
I went into PHPAdmin and changed the password, same error message. I went back and tried changing username and password, same error message for the new username.
I removed everything, including the database and set up everything again. Same problem, can not get back into admin panel.
Any suggestions? Or advice on how I can remove everything and set it up again so it works?