make sure that you have the latest version of eCart and Data Bridge installed.
we have done some hot fix updaters to those extensions in the past month so i suggest uninstalling them and reinstalling them to make sure you are up to date.
to change the validation style, I think I would create a test page with the jQuery validation style you wish to use, then edit the checkout page to change the style sheet pointer:
<link rel="stylesheet" href="webassist/jq_validation/Serene.css">
and then edit the jQuery script block:
var CheckoutWizard_Sharp_Default_Opts = {
focusout: true,
focusin: false,
change: false,
keyup: false,
popupClass: "Serene",
pointedAt: "middle",
fieldOffset: 0,
fieldMargin: 0,
position: "middle",
direction: "middle",
border: 0,
offset: 0,
closeText: "✖",
percentWidth: 100,
orientation: "left",
};
replace all of the options:
focusout: true,
focusin: false,
change: false,
keyup: false,
popupClass: "Serene",
pointedAt: "middle",
fieldOffset: 0,
fieldMargin: 0,
position: "middle",
direction: "middle",
border: 0,
offset: 0,
closeText: "✖",
percentWidth: 100,
orientation: "left",
with the options from the test page.