[ disclaimer: I apologize if this has been discussed prior - didn't find it anywhere in all my searching... ]

For those having trouble getting smooth lines to print out of AICS (or Acrobat 6, in my case as well) - here's what I did.

'Print' the file as an Adobe PostScript file, embedding fonts, colorsync workflow info, etc.

Drag the .ps file onto Preview (as in the Apple application) - let it convert

Print from Preview - Ta Da! :)

I got perfect color output, smooth lines, etc - looks exactly like my borderless / bleed print (I'm doing a 8.5 x 5.5 card) that I printed from AICS, except no aliased line art!

YMMV...

[Done on a MDD 867 Dual with all the latest updates for OS X & AICS)