Trying to reset password

[blind1]

I am running this queiry assuming the prefix is this part PREFIX_database to reset the password as resending it to our email didnt work:

DELETE FROM PREFIX_admin WHERE admin_name = 'Admin'; 
INSERT INTO PREFIX_admin (admin_name, admin_email, admin_pass, admin_level) 
VALUES ('Admin', 'admin@localhost', '351683ea4e19efe34874b501fdbf9792:9b', 1); 

Nothing is happening and I still am logged out. I had siteground transfer the site which was working fine on another host but everything is going wrong and i am regretting the move. We have been unable to get into the admin for days and they are slow to respond.