Error Message trying to import MySQL dump file

This is my first time using WinSCP and SSH

I'm trying to import a MySQL dump file from my testing server into my live server. I'm getting the error

"Enter password: ERROR 1045 (28000): Access denied for user 'username'@'localhost' (using password: YES)"

I think you're confusing the technology :)

WinSCP = Secure File Copy
SSH = Secure (Command) Shell

You can use SSH (eg via Putty) to execute commands on your servers.
You /may be/ able to use WinSCP to connect to the server and upload/download the SQL dump file to the servers file system, but not to the mySQL application.

Make sense? 8)