Hi and welcome to SaleHoo, newcreation4 :)
To activate your Sky High Auctions upgrade, login to your SaleHoo account.
On the Membersâ€™ homepage, you will see a link to Products in the second red menu at the top of the page.
Clicking this Products link will display all your purchases from SaleHoo. Just click the one you want to visit and follow the instructions to activate.
Hope this helps. Enjoy!