We should start by saying that unless you've purchased support from us then Opus comes with absolutely no warranty; for details read the GNU Public License (sic).
Having said that, if you want help and advice on using Opus we will try to do what we can, but bear in mind that in doing so we are doing this for fun, we are not making any money out of helping you, and we're not obliged to help you. So be nice.
You can contact us by email as
We run a mailing list called opus-users on our list server so that users can discuss Opus between themselves and help each other out. It's also a place where we discuss future enhancements to Opus with users. The list is archived online.
If you would like help and support on a commercial basis then we would love to be able to provide that in return for a suitably generous fee. If you're interested in doing this then
with your requirements.