Magento Tips

To create new reports in the reports section of admin panel we need to change the following files :

app/code/core/Mage/Adminhtml/Block/Report/Product/Lowstock.php
app/code/core/Mage/Adminhtml/Block/Report/Product/Lowstock/Grid.php
app/code/core/Mage/Reports/Model/Product/Collection.php
app/code/core/Reports/etc/config.xml <- line 171-415 (menu / user permissions (acl tag))
app/design/adminhtml/default/default/template/report/grid.phtml
app/design/adminhtml/default/default/template/report/store/switcher.phtml

for more details please visit : http://www.magentocommerce.com/boards/viewthread/27928/