On my flash layout I want it so when you click on a link the page will pop up in a 400x400 pixel Chromless window.

The link isn't flash though it's just a webpage

Can anyone help????

to make it pop up you'd have to code it in javascript, but theres an easier way. Go to the downloads section of http://www.chromeless.org/ and download the file called chromeless windows in flash, open it up and edit from there.