[Plugin: WordPress PHPList Dual Registration] Got it to work

In case someone else can use the info, I got this plugin working. The fix by Dukessa really works like a charm, but in my case it needed a bit of tweaking to get it to correctly populate PHP Lists database. Some things to have in mind:

In the line #93 you will find a debug echo: use it to pinpoint the exact reason why the form is not getting filled right. In my case, it had to do with the name field (a field I set as required) being pulled empty from WordPress form. The thing is that the plugin was trying to use the WordPress id ‘author’ as the name (line #136). I don’t have that field active on my WordPress registration form, so it was always empty. As it was a required field, the form wouldn’t work. I changed ‘author’ for ‘user_login’ (a required field on WordPress’ form) and it worked just fine.

Hope this helps someone, and thanks Dukessa for your work!