Right - didn't think of that. Downloaded the 4.2 version and it installed just fine. Thank you!
We're running 4.2 out of the box. Uploading the zip file has no effect. It seems successful, but afterwards there are no files on the server that start with sevenspikes. Maanually copying the two folders to the plugins folder where I see all the other plugins does not make the plugin show up in the admin section after clicking the reloading button.
Appreciate some tips. Thanks.