I've played with those settings, but it doesn't seem to be the issue. I believe it's an issue with the CSF install done via quickbox. When I set my IP for quick allow under CSF, it connects just fine. When I remove the quick allow, the non-secure FTP fails to get a response with the directory listing.
Checking the CSF configuration, the port 5757 is allowed both in and out for TCP and UDP under IPv4. I know from some additional reading on Google, Active mode FTP will use port 21 to connect, but port 20 to receive information back (unclear terminology here, sorry. Rough understanding from what I've found). So this brings me to my new question --- Does Quickbox change the default port 20, that is used with active FTP?
I have tested just allowing port 20 for TCP and UDP under IPv4, but it still doesn't work.