Thank you very much for the information. It should be easier than I thought.
When I try to setup an account via Pidgin I get a "Host unknown". I am thinking that I did every other setting correctly (at least settings that I used on the former "ejabberd").
I found some documentation in the meantime and as I understand it from the quick setup guide, the c2s.xml needs a change for the "id" field (apparently the hostname?) but the id generated here seems to be a default "c2s" (see below) which I think it might be part of my issue?
<!-- Our ID on the network (default: c2s) -->
<id>c2s</id>
According to the documentation/setup guide, there is another "id" to be set in sm.xml and that one is adjusted to our (test) system:
<id>{$SystemName}.{$DomainName}</id> (that's from your template).
Anyway, Thank you for the nice work. I will continue testing and will report back here what I find out.
Michael