Eric,
Thanks for your interest in X10!
Currenly, high-gloss 4C offset printing is
not supported with our low-res image
library. Most of our files are low-res,
given the nature of our online channel.
However, if you are using Photoshop, there
is a workaround if the images on your flyer
can be small (see the contractor tool box
flyers link on the pro site - log in at
x10contractor.com).
Our low-res rgb will work fine when printed
from laser printers at 72dpi as long as they
are kept at 100% size.
We are working on a hi-res ftp site, so look
for it in 2006!