htaccess information:
http://forum.x-cart.com/viewtopic.php?t=1439
Also make sure you edit smarty.php to reflect the new 2.3.1 smarty directory like so:
Code:
if (!@include("../Smarty-2.3.1/Smarty.class.php"))
@include("./Smarty-2.3.1/Smarty.class.php");
This is why your getting the error is because it isn't able to locate the class file(s).
hth.
