Answer for What do I provide as WordPress’ Connection Information?

First, sorry for my late reply and thanks for your questions;
1. I’ve to warn you that ZPanel is no longer maintained and it’s not advisable to use it, with that out of the way, the FTP information required are the ones of ZPanel.
2. I personally used to access it from the AjaXplorer, but I think You should find it inside the ZPanel directory.

Hope that would help.