Hi, sorry for the question, surely someone wondering the same thing but my English is not good. Buy Avia Slider plugin in the zip and see the folders
* __MACOSX
* documentation_html
* html
* psd
When trying to install I get an installation error: The plugin does not have a valid header.
I could indicate how to install or correct folders to upload?
Thanks
Create a new thread and tell me what problems you are encountering and what you want to know. 
There is no step 3 :) 
