The problem was that it was looking for something related to the ajax checkout. I added that information to the template and now it doesn't give me an error.
I am, however, getting an error when clicking the add button to add an item to the cart. I do not understand as I haven't changed anything to my add to cart process:
Code:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDS)
Timestamp: Mon, 23 Aug 2010 18:36:49 UTC
Message: 'type' is null or not an object
Line: 924
Char: 4
Code: 0
URI: http://development/theme/jscripts/formvalidate.js
Message: 'type' is null or not an object
Line: 924
Char: 4
Code: 0
URI: http://development/theme/jscripts/formvalidate.js
Message: 'type' is null or not an object
Line: 924
Char: 4
Code: 0
URI: http://development/theme/jscripts/formvalidate.js