A version for the TI-84 Plus CE is actually not available yet. The reason for this is Doors, the application on which the TI-84+ C Silver version relies, has not yet been updated to be compatible with the TI-84+ CE. When the latest version of Doors (version 9) is available, please try launching the software again using Doors 9. You can stay apprised of the latest information on Doors 9 by following this thread: https://www.cemetech.net/forum/viewtopic.php?t=11997
A version for the TI-84 Plus C is available at http://calc-tech.com/purchase. Be sure to select that version from the drop down menu.
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