I thought I’d help out and try to update the Flickr2Piwigo plugin to support OAuth, but having done so I now seem to have become a maintainer of the thing. So that’s good. I’ve just released version 1.3.0.
I’ll try to see to all the outstanding bug reports (well, there’s only one at the moment). And then perhaps add some extra features (support for approximate dates? automatic downloading? download of other people’s photos?).