If you have premium you are not going to be able to see the ads.
If you are using an Adblock program, you will not be able to see the sponsored top ad banners you need to click on either.
Guide: (Can be done in any order)
Go to Krawk Island to find a Popsicle ad. Wander around or refresh the page until a Popsicle top banner appears that says: Cool! You've found the Fantastic Fruity Popsicle Pop.
When you click on the banner you will be taken back to the main Popsicle page.
Go to Lost Desert to find the next Popsicle ad. Wander around or refresh the page until a Popsicle top banner appears that says: Sweet! You've found the Swirlwinds Popsicle Pop.
Click on the banner to go back to the main Popsicle page.
To find the next Popsicle, go to the Altador Cup Standings and find the ad that says: You've found the Strawberry Ice Age Popsicle Pop.
Click on the banner to go back to the main Popsicle page.
You should now have a new item in your inventory.