Admin Access Management I get a problem with privileges in Products.

Hello,
I hope someone can help me:

When I create a user in the Admin Access Management I get a problem with privileges in Products.

I explain:
The user has the possibility to go to the catalog - category/products listing and go into all the category’s but when he want to edit an product he has no access.
The user is allowed to make changes to all other sections in the catalog sections but not in Products.

I have tested this in the:

ZenCart versions v1.5.1 and v1.5.4

PHP versie: 5.2.17 (Zend versie: 2.2.0) PHP Memory Limiet: 128M
Database: MySQL 5.1.58

Hope someone has also this problem.

First of all PHP 5.2.17 is outdated and unsupported at this time. Second it may be that sufficient permissions have yet to be given to the user to access this area of the admin area.

At the moment I'm not sure what permissions are necessary, but it would seem that more are needed.