Hi Michael,
Yes those are listening on my 'webserver' / testbox.. When writing the guide i was using only 2 machines (1 pfSense & 1 webserver), where i indeed had the webserver listening on multiple ports with a different index.html served on each one just to check if the haproxy side of things was working properly. When using different webservers you could use port 80 or 443 on all of them and make the difference by their ip's. Or you could actually host multiple webapplications on different ports from 1 machine, while serving all of them on the 'outside' on the standard 80 / 443 ports. But a webserver could likely also accomplish that with configuring some virtualhosts..
Anyway i hope this helps understand the screenshots a little better.. Sorry for the confusion.
Latest 'doc' is currently available here (im still using those non standard ports there though ;) ): https://github.com/PiBa-NL/pfsense-haproxy-package-doc/wiki
Regards,
PiBa-NL