OK. I understand now. Zenpress.
(Copied from other SusieN post):
There are two sets of directories you have to copy. One is the actual plugin which you put into plugins under your wp_content directory, and the other one goes under the includes in the tiny_MCE plugins section. The zenpress docs in the distribution should have the exact placement locations. That's probably why you're getting that error.
So, looking at the distribution folder, there are two directories:
wp-content\plugins\zenpress
wp-includes\js\tinymce\plugins\zenpress
If you look at the structure, you have to place the zenpress folders in those locations on the server. That should do it. Activate the plugin, then go to Options>Zenpress to configure. It may autodetect the settings.
Sorry for the lengthy emails. I'm a network admin , so I can get wordy with explanations.