All of this can be found on kryptonsite. they have more pictures and screencaps from this, and other episodes. Be sure to check it out.
Here is the official description.
Chloe’s having a birthday party. At her party a magician named Zatanna (guest star the lovely Serinda Swan) gives Chloe the chance to see what it would be like to be Lois. So naturally she does this by switching them into each other’s bodies.
Zatanna is there searching for her father’s spell book so she can conjure up his spirit.
At some point she will grant Clark his deepest wish.
Here she is the Mistess of Magic Zatanna!
Looks like someone's been helping Zatanna out.
Arrow must want something in return
I did not think Arrow was into that....Maybe the fishnets remind him of Black Canary.
I hope doesn't get an itch...I wonder how long he'll be there, before Clark saves him, again.