The whole procedure is wrong.
Please follow these simple steps:
1. Open in BV the following files:
a.
ndadminelp.bvp,
b. ndadminconfirm.bvp,
c. thankyou_page.bvp,
d. errorpage.bvp. For this one make sure the publishing extension (in page properties) is set to
php Save them on your computer and publish them.
2. Open in BV the file
ndadmin.bvp. Change the password in the page html, as per tutorial instructions. Make sure the publishing extension (in page properties) is set to
php. Save the page and publish.
3. Upload on your site, the files
a. abvfp.php
b. ndadmin1.php
using BlueFTP or any other FTP, or even File Manager.
Do NOT attempt to change the errorpage and the thankyou page at this stage, it might confuse you.
Ok, the installation is over.
Please delete the "uploads" folder if you have created one. The script will create it for you.
Type in your browser
www.yoursite.com/ndadmin.php and when it opens, login using the password you have inserted in the ndadmin file html before publishing it. Follow the wizard and when done, click on "Generate configuration File". You are done.
Later, you can modify the "thankyou_page" and "errorpage" directly in BV, following the tutorial instructions. Save the modified pages and publish them.