I use the zippy cages when I show, and love them!! I like that they come from my home, and only my cats will be in them, and when we get home, they can be thrown in the wash.
My breeder, who is also my mentor went with my to my first shows to help me out and make sure I was comfortable. It was a wonderful time, and I have met many different exhibitiors to help me out and give me advice. If you live close to your breeder, see if she/he will take you to your first couple of shows, they may even have an extra set of show curtains you can use the first time. Also, make sure your registration papers were not marked "not for showing", most breeders will do this, unless selling a show quality kitten.
I will be at a few of the South Central region TICA shows coming up, with my Ragdolls.
Have a lot of fun at the show, and good luck!!