osCommerce This is 15 steps how install osCommerce:
1. Download osCommerce from site http://www.oscommerce.com/
2. Copy it to /public_html/
3. Change permissions to file configure.php to the 777
/public_html/catalog/includes/configure.php
4. Change permissions to the file configure.php to the 777 in admin catalog
/public_html/catalog/admin/includes/configure.php
5. Now point your browser to www.yoursite/catalog/install
6. Click button new installation
7. click continue
8....