Welcome to The Vintage Village, Harriet :)
Here is the link again to the RL group http://thevintagevillage.com/group/rubylane
Then go to the Member Info Center Group, where you will learn lots more about how things work here. Only Premium Members can post photos of their items and participate in the special promotional threads. You will learn more about being a Premium Member in the Info group
Here is the link to the Member Info center again http://thevintagevillage.com/group/membershipinformation
You can freely use your personal page here to advertise your shop(s) as well. Take a look at my page by clicking on my avatar to get an idea of how to do that.
We have many other groups here so feel free to join any that suit what you sell or are interested in. If you have shops on other venues, they are also represented here.
Hope that helps to get you started.