Here is the situation. I have CS 4 Design Premium which has Adobe Exchange already however when i try to use it the file extensions . mxp to install what i am assuming is the Adobe exchange extension/ plugin that is needed to contribute items to the Adobe website or exchange site. I have already downloaded the Adobe Exchange i have put it in my extension in CS 4, i have put it in my plug ins in CS 4 both times i have restarted the program and both times the extension has not shown up in photoshop so hep please.
I need STEP BY STEP instructions please.