Do you know what the default schema, user and password is when you install XE or do you need to do something else to setup them up, if so what?Depending on your setup you might want to connect to the "HR" schema containing some demo data. Otherwhise, there are a few administrative/technical accounts you can use to test your connection and for administrative tasks (e.g., creating a new database user). The administrative accounts would be "SYS" or "SYSTEM" using the password you've entered in the installer.
Is there a better way/tool(free) I could use instead of SqlDbx to connect to the database server?There is [url http://www.oracle.com/technetwork/developer-tools/sql-developer/overview/index.html]Oracle SQL Developer, which is available free of charge as well. It is licensed with your database, i.e. you can use it with any properly licensed Oracle Database, including XE.