First, is there any active support on this thread. The Google group for Zen Cart Google Checkout looks dead (no recent posts).

I had GC working properly until I added a free shipping option for orders over $100 in normal zen cart. Now a free shipping option shows up in Google regardless of the order total. I had the module set for carrier caluclated shipping with only fedex enablbed.

I have disabled GC until (or if) I can resolve this.

Mark
www.essential-stuff-store.com