yes both active and passive with firewall down
Yes, I've tried both active and passive (port 990) with the firewall disabled.
One irregularity was that I caught that I had not set TLS 1 until after I installed ISPConfig 3. But after restarting pure-ftpd and rebooting still it didn't work.
After having problems I discovered the FTP HOWTO "Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Fedora 14". I'm not sure whether that is just for ISPConfig 2, but I haven't done that stuff.
Thank you for your help.