A skin package consists of this:

• skinname.zip contains two folders named 
  • Skins
  • Containers

If uploaded via the host menu then this will be extraced as follows:

• portals/_default/skins/skinname/(files from skins folder)
• portals/_default/containers/skinname/(files from containers folder)

If uploaded via the Admin menu then replace "_default" with the portal ID or the portal friendly name if used.

You will easily see all of this if you simply browse the file system by ftp or remote file explorer.

Download the files from the skins and containers folders for your skin and recompile them into a new zip as indicated in this post. Examine another skin package to see the structure for yourself.

There is one caveat - If the skin package contains HTML and XML files, and you had manually modified any of the skin's ASCX files after uploading it, you should remove the HTML files as they will be reparsed and overwrite any changes made to ASCX files. If you did not alter the skin files, and if you had then I would not be explaining all of this, then you need not worry.

Rob