Google Checkout Confusion

[prettynhandsome]

eBid has these instructions on setting up Google Checkout:
As well as adding Merchant ID and Merchant Key to eBid you must also add our callback URL https://www.ebid.net/perl/googlecheckout_in.cgi to your Google Checkout account. Also choose the Callback method : XML and Shopping trolley post security : OFF.

I am dumb when it comes to this. Where do I put the callback URL in Google Checkout account as well as the other things? I can't find a place to put this data.

Is there a shopping cart with this? eBid is not listed with other firms.

Your help will be appreciated and welcome. I am confused.

Hank

[JanetB]

Click on my Google link in my signature below, it will show you exactly what to do.