If you would like to have a login status box on each page you will need to add one line of code where you would like the login box to appear. The code you need is the following:

<!--#include file="vsadmin/inc/incminilogin.asp"-->

Paste that into HTML / code view exactly where the login box should appear and make sure that it comes somewhere after the include lines:
<!--#include file="vsadmin/db_conn_open.asp"-->
<!--#include file="vsadmin/includes.asp"-->
<!--#include file="vsadmin/inc/languagefile.asp"-->
<!--#include file="vsadmin/inc/incfunctions.asp"-->

To enable the login you will then need to go to vsadmin/includes.asp and add the line (if it's not already present) enableclientlogin=true

Finally you'll need to set up the login page itself. Open your thanks.asp page and save it as clientlogin.asp. Then go in to HTML / code view and locate this line:

<!--#include file="vsadmin/inc/incthanks.asp"-->

....and change it to

<!--#include file="vsadmin/inc/incclientlogin.asp"-->

Save clientlogin.asp and upload it to your server.

You should now be able to see the login box and the login page on your store.

Login Box

Login Box after successful login

Login Box if enableclientlogin=true
hasn't been set in vsadmin/includes.asp

Login Dialogue on clientlogin.asp

Setting up a client

In your home admin page there should be a link client login admin, click to set up your clients' options.

Click on new client login to add the details and parameters available for each particular customer.

Enter the client name, password, the relevant action (You can use CTRL + Click to select more than one choice) and finally the login level. When done, click on submit and your client will have been set up with the parameters you have assigned.

Login level

You can assign different levels of login permissions on any page to say that a particular page is restricted to anyone below the login level assigned in the login admin section. For example, if you set requiredloginlevel=4 then only people who you have set up with a login value of 4 or above can view the page when logged on. Only place the code on the pages where you need to restrict access, for example, it should not go on clientlogin.asp

To add the level of restriction to individual pages you will need to add the line:

<% requiredloginlevel=4 %>

...where 4 is the threshold of permission for that page. This needs to come anywhere before the line
< !--#include file="vsadmin/inc/incfunctions.asp"-->