Can't access Shop URLs in admin, redirection problems

[lepusa]

Here is the site:

 

http://leadingedgeproducts.com

 

The site runs on Joomla in a directory like 'public_html/joomla/', except for the PRODUCTS menu item, which takes you into a PrestaShop install located in 'public_html/joomla/store/'. There is a standard PrestaShop generated '.htaccess' file in place there.

 

Both areas of the site were built for the domain name 'lep4u.com', but the new domain is 'leadingedgeproducts.com', which obviously is working fine on the Joomla side of things. However, in trying to go to 'http://leadingedgeproducts.com/store' you get redirected to 'http://lep4u.com/joomla/store/'.

 

Furthermore, as I mentioned in the Subject line, I can't access the Shop URLs pane in the store admin, I just get "Access Denied" in red. From what I understand that is where I could make changes to fix this (by directly tweaking '.htaccess' I believe).

 

Anyhow, I'm sure this is an easy fix, I just need some info on how.

 

Any help is greatly appreciated!