I don’t/My partner doesn’t think any of our problems relate back to childhood. We understand this is a core part of Imago therapy. Can we still benefit from the workshop?

Yes you can still benefit.   The connections between our current frustrations and conflict, and our childhood experience, is not clear to many people.  Imago theory does suggest that we unconsciously connect the two.  However, this is simply a theory or idea which assists in making sense of the current situation, and Imago processes will work when used consistently, with or without a belief in the link between adult relationship issues and childhood.