change of skin/theme

Author: Lonny Hansen

Date: 2009-09-01
Hi I am a newbie in Plone3 and would be grateful for some help concerning upload of a new skin/theme In "add/remove products" at "site setup" I am told to upload new products to /var/lib/zope2.10/instance/z8084/Products Where in ZMI or ? is this?
thanks in advance
Lonny