Yes Eric Priou (aka erixtekila) who has done the AS2 API for Oregano ( so he knows what he’s talking about when talking about Oregano ) has ( re ) open a forum for Oregano.
Here is the link http://www.v-i-a.net/forum/
Some other links you may like:
Articles : http://www.v-i-a.net/inprogress
Oregano : http://www.v-i-a.net/inprogress/doku.php/oregano
C you and thx Eric for that 😉