Hi Claudette, 

you can obtain this result following these steps:

On Step 3, place the page you want to sell the tickets on as non visible on the menu

• On Step 1- Shopping Chart, create an e-commerce based on these tickets, choose a payment method like a normal e-commerce. As it is a lottery, you may want to have just a certain number of available tickets, so you should work with the product availability. You will need a Database for that. 
• On Step 4, on the page chosen to sell the tickets, place a Product Catalog Object and choose the tickets.
• On Step 1- Advert click on  Show the Advertising Message, choose the type of Advert you prefer and if you want to have ti shown on all pages or just on the homepage. 
• Always on Step 1- Advert place a Link to the page created at the beginning. 

Please let me know if there is something I can do for you. Kind regards.