Huge line of shot glasses

Hi guys!
I'm working on a flyer and because I'm new to Photoshop, i have a question:
I want to make a huge line (backward) of shot glasses with the following picture as basis.



my problem is that I'm unable to handle the transparency between the shot glasses. Maybe someone can help me?!
Thanks to all!

greets, grep.

well there's a few things you can try to do
use a imagemask and try it that way you'll probably have to use the eraser tool for the transparency issues... or if you don't mind spending a few dollars invest in knockout from corel... it keeps inital transparency intact! its a beautiful program

thanks a lot! I'll try to do it with knockout, sounds interesting.