Its a big logo so you probably want to shift it to this location between the div end and the footer lower
</div> <img src="/images/uploaded/paypal%20visa%20mastercard%20logo.jpg" alt="Paypal Visa Mastercard" /> <div class="footer-lower">
Also you need to restart the application to get it to work Click the Gears Image then Restart Application link in the top right corner of the admin page
PS I dont like the grey text on the blue background - but thats just me :)
I think you should go through some .NET tutorials first. It will help you to understand about platform. Then try follow the documentation from nopCommerce.
It works on my test website - See https://v42demo.selectsystems.com.au/ Make sure you use the correct link - copy and paste this <img src="/images/uploaded/paypal%20visa%20mastercard%20logo.jpg" alt="Paypal Visa Mastercard" /> Did you restart the application ?
Yes move it to this new location [quote=Yidna]between the div end and the footer lower </div> <img src="/images/uploaded/paypal%20visa%20mastercard%20logo.jpg" alt="Paypal Visa Mastercard" /> <div class="footer-lower">