Illustrator :: Unable To Display White Channel Of Placed DCS / EPS

I should have spoke up sooner because I thought this would get fixed pretty quickly but I just upgraded to CS6 and it's still broken. I use Photoshop to generate color separations for screen printing. We do simulated spot process which means we print the prodomient colors of the image rather than gambling that CMYK will work. We print white because garments are often any color you can imagine. So I use the DCS.eps format alot. I place this linked in Illustrator. Up untill CS3 this worked fine. I skipped 4, but upgraded to 5. Five doesn't display the white channel. (These files are Multichannel mode, each channel is a Spot channel. saved as dcs/eps) I have not tried output. It may print fine.

The thing is I end up with a client perched on my shoulder like a buzzard and if the white parts of the design or the white channel/screen isn't their to support the top/upper colors I look like I don't know what I'm doing, or I left the white out, etc. I've been in both offset printing and screen printing and T&T (trinkets and trash) for a long time. Messing up paper is one thing. Messing up an Under Armor or Nike or you name it garment is a whole different ballgame so they are pretty tense when it comes to what they see. I already have to explain that it looks pixelated and rough because it's an 8 bit preview but will print sharp.