As you will have noticed, the menu order on the joomleague site is sometimes messed up.
For example now the order is: wiki, forum, impressum, home, .....
This can be caused by an upgrade from 1.5/1.6/1.7 to 2.5 with JUpgrade.
If this is the case, the problem can be solved by editing the database menu table.
1. Go to PHPMyAdmin
2. Click on your database name on left too open that database.
3. Once the database is open, click on the tab near top called SQL. You will get a white box.
4. In the white box, past in UPDATE `your db name`.`your table prefix_menu` SET `ordering` = '0'
Example of what to put for these values (db name - and - table prefix_menu) depend on what your database name and table prefix are. Say your database name is shoes_tie and your table prefix (this is the prefix on all of the tables listed on the left in your database) is jos151_. In this case you would put the following into the white box:
UPDATE `shoes_tie`.`jos151_menu` SET `ordering` = '0'
5. Once you have this pasted in the white box (make sure you have the db and prefix correct), click GO at bottom right on screen.
Credits go to the Joomla forum