Checkout page issues

The legend of the fieldsets is defined in your joomla template CSS. There, you can change it:
legend { color: #FFF; }

To set a different address, just untick the checkbox... I'm not sure what is your question ?

At the bottom of the page you have the cart module displayed. You should just remove it from there. For example, you could unublish it if you don't use it.

Then, that means that you have a javascript error on your website which prevents hikashop's javascript to display the shipping address selection interface. You should fix your javascript error.

Then, instead of unpublishing the cart you could display it only on the menus where you need it and not on the checkout. That can be configured in the joomla options of each module.

Hi,

There is indeed a problem in IE8 with that. IE8 doesn't like the onchange event for input checkboxes and doesn't trigger it. We need to change for an onclick event.
Go in the menu Display->Views and edit the file address of the view checkout. There change the text "onchange" to "onclick" and then it will work.
We will add that to next version of HikaShop.
for the width of that part, you can add for example something like that:
.hikashop_checkout_shipping_div{ width:200px }

What is the URL of your website so that we can look at it directly ?

It's really hard to guess CSS without seeing the page with firebug as any CSS on your website (the ones of your template mainly) could change the behavior.

Instead of adding to the file the CSS I gave you,

Just change the CSS which is already there:

.hikashop_checkout_address_right_part{
    width:350px;
    float:left;
}