Force a certain ship method to non-US customers???

Hello,

I am trying to figure out a way to MAKE Canadian customers use UPS for shipping and US customers use Fedex Ground.

I've read in the Wiki it says it can be done but uselessly, it doesn't say how to do it:

http://wiki.earlyimpact.com/productcart/shipping-general_settings

"More control on which shipping options are shown to customers during checkout.
You can now set up a custom shipping option to only be shown to international vs. domestic customers."

Does anyone out there know how to do this? 

The way it goes now, Canadian customers can choose either Fedex Ground or UPS Standard to Canada.  Since Fedex ground is less expensive they will always choose that.  I NEED them to chose UPS Standard to Canada however.  Is there a way to serve only 1 shipping option based on the customers country?

Thanks!

I have added the feature to our wishlist.  In the meantime, this can be accomplished with a mod to the file "shiprates.asp".