John:
What you downloaded was the Innovator-C license pack. The v14.10 installer installs the same binaries that are used for all "Editions" only the license packs are different (which means you don't have to reinstall to change Editions, just install the new license and restart the server).
So, download the Installer for "Developer Edition" that is the file that you need. If you have already installed the license pack, you are good. Get the DE installer and install it, it should recognize the installed license pack and when you start up a server it should come online as Innovator-C (IE).
Art
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Art S. Kagel, President and Principal Consultant
ASK Database Management Corp.
www.askdbmgt.com------------------------------