wp-config.php questions

Hello!
I am trying to download WordPress using a WAMP server and I am ahaving some issues. I have tried several different methods with no luck.

1. I downloaded wordpress, moved it into the server file, and then created a database/user on myPHPadmin. Afterwards, I went to localhost/wordpress to try and run the install script but I get stuck at entering in my database credentials. It keeps saying they are incorrect, when I know they’re not, or that my hosting server is down – which can’t be the case because everything is online.

2. I have also created a database and user in myPHPadmin and copied those credentials (database name, username, password, host [localhost])into the wp-config-sample file. I then renamed the file “wp-config.php”. When I go to localhost/wordpress it gives me this error “Sorry, I need a sample wp-config file to work from.” So I renamed the file “wp-config-sample”. When I do this it allows me to attempt to enter my credentials, still saying they are wrong or the host is down, yet again everything is still online.

3. I created a database and user in myPHPadmin and copied the wp-config-sample file to create two. I then copied the datavase credentials (database name, username, password, host [localhost])into the wp-config-sample file COPY and renamed it wp-config.php. When I go to localhost/wordpress it gives me this error “Database not found.”

I am at a complete loss for what to do. Any help would be appreciated!