Of course it's easy to use the organizer or Bridge to look at your kits and find things, but you need to start with an organization PLAN for how and where to store those kits on your hard drive. People use different plans, all for good reasons, and you need to choose one to guide you. Check out
this thread and
this thread and
this thread for some info on how people do this, choose a plan, and start NOW. You can see this is a perennial question with people new to digiscrapping.
Unzip and put away your kits as soon as you get them, so they will be available for using on your layouts, and you will be able to see and sort them in Organizer or Bridge.