Ashley, the SQL Agent does not need to be installed on the remote SQL Server !!! That does not work. You have to install the SQL Agent locally at the Backup Exec Media server itself.
On the remote SQL Server, you need to install the Backup Exec Remote Agent for Windows Servers only. (The license for the Remote Agent is included in the SQL Agent license)
in short words: SQL Agent on the Media Server, Remote agent on the remote SQL Server.
Hope this helps
uz