Hi Gary,

We don't have a setting for this however it is possible be editing the below file and add in the two sections in bold, note if you make these changes and then upgrade to a new version of CV they will be overwritten so you will need to take a backup beforehand and then reapply:
DesktopModules\cartviper\customerCart.ascx

<div style="display:none">
    <asp:Panel runat="server" ID="pnlLoginToCheckout">   
 
        <div class="StoreCheckCentre">
           <div runat="server" id="checkoutHelpDiv" class="infoAnonCheckoutCaption">
                <center>
                    <asp:Label runat="server" ID="lblAnonCheckout" />
                </center>                
           </div>  


           <div style="padding-bottom:20px;"></div>


            <div class="StoreCheckOutRegister">
                <div class="StoreCheckOutheader"><asp:Label runat="server" ID="lblRegisterCaption" resourcekey="lblRegisterCaption" /></div>
                 <div style="margin-top:20px"><asp:Label runat="server" ID="lblRegisterHelp" resourcekey="lblRegisterHelp" /><br /><br />
                    <asp:HyperLink CssClass="CommandButton" runat="server" ID="hypRegister" resourcekey="hypRegister"></asp:HyperLink>
                </div>
            </div>
            <div class="StoreCheckOutLogin">




                <div class="StoreCheckOutheader"><asp:Label runat="server" ID="lblLoginCaption" resourcekey="lblLoginCaption" /></div>
                    <div style="margin-top:20px;"><asp:Label runat="server" ID="lblLoginHelp" resourcekey="lblLoginHelp" /><br /><br />
                        <asp:PlaceHolder ID="phLoginCtl" runat="server">
                            <asp:PlaceHolder ID="MessagePlaceHolder" runat="server"></asp:PlaceHolder>
                        </asp:PlaceHolder>                        
                    </div>
            </div>
            <div style="clear:both;"></div>
        </div>
    </asp:Panel>
    </div>

The checkout stage is not templated so the fields are static apart from asking for company name and VAT number, if you would like we could provide a quote to make a custom checkout page to capture additional information or add these as settings as we have done for company name. If you would like to discuss this further please email me: nigel@cartviper.com

Thanks
Nigel.