Thanks for the help, I've got it sussed now! Firstly I was doing things in the wrong order, secondly, the notecards I'd read didn't say that the Tank Top, Bikini etc were needed - they only referred to Dress top and Dress Bra, thirdly, I'd somehow managed to colour those in black, so if by chance I did use the right one, it looked all wrong! So thanks for the suggestions.
Just need to find somewhere to buy compatible clothing now!