Online Store - editing labels

Hello,

I have just purchased the online store and wanted to remove the sign in aspect of this. I've used one of your old forum threads that I found that seems to work. the answer was this

se this custom CSS rule:

div.ecwid-productBrowser-auth { display: none; }

This code will remove the "sign in" link.

If you also want to remove all elements, that allows signing into your store, use this code:

div.ecwid-productBrowser-auth { display: none; }
table.ecwid-Checkout-blockTitle button, div.ecwid-Checkout-PasswordBlock {
display:none;
}
div.ecwid-Checkout-blockTitle button.gwt-Button{
display: none;
}

Then edit the labels that states "Enter your shipping address or .." and "Enter your e-mail or .." on the checkout pages.

Please could you tell me how I edit the labels on the checkout pages? thank you