Hi kirsten,
In my opion pop-ups can be functional if used properly. For example
in combination with upselling links. I can't imagine that a customer clicks
a buy now button only based on a thumbnail and a short description.
And if you don't want the customer move away from the orginal product
he/she at first interested was, a pop-up with a more detailed description
would be very usefull.
Something I like to implement in my shop, some day. I don't have the
time now because I'm still

with other parts of x-cart.
Maybe you find some usefull code in the detailed image pop-up
from boomer. It also works with a pop-up.
http://forum.x-cart.com/viewtopic.php?t=11621
Good luck and please let me know if you succeed.
