AbleCommerce Shopping Cart Software

What API Version do I put in the drop down box on the Google Checkout Integration page?
I have it set to Version 2.5

Hi - The info you requested is as follows: AbleCommerce for ASP.NET VERSION: 7.0.7.14600 MSSQL v2005 I had it set up as a test - it worked only once The next time I set it up I got this error and every time after I tried it since then I put an item in the basket Click the Google checkout button I im...

Does anyone know why I am getting this error? ------------------------------------------------------------------------------ Google Checkout Failed. Google Checkout Response.IsGood = False Google Checkout Error Message = Internal error in server ------------------------------------------------------...