Yes, they go on the clear blocks. I have heard some people do NOT use the sticker, while others do...sometimes I have a hard time keeping mine on the block if I use the sticker so recently I have stopped using it. There are tricks out there for keeping them stuck to the block but I still go with just not using the sticker at all.
I used to only get the wood mount ones but once I used the cling ones I have never looked back. The blocks can still be used with the stamp-a-ma-jig and that was a big deal for me.
Ask yourself, "When Iím on my deathbed, will I be glad I was so serious about _______?" Let down your hair and stop being so darn important for a while.