With Facebook’s new Page design, tabs are now on the left. But it’s not clear as of now how to re-order these tabs.
The default order of tabs starts with the “Wall”, then “Info”, then everything else. “Wall” and “Info” can’t be re-ordered, but all of the other tabs can.
If you have less than nine tabs displayed in your sidebar, the “More / Edit” link will not appear under your tabs.
No doubt, Facebook will fix this issue soon, but here’s a work-around for now.
How to re-order your tabs
Within the “Apps” section of your admin panel, click on “Edit Settings” for each app and select “add”. If it says “remove” in the settings, that means that the tab has already been added to your Page’s sidebar.
Continue to add apps until you have ten tabs in your sidebar (I know this sounds insane, but it’s the only work-around I’ve found).
Edit and re-order your tabs
Once you’ve added these tabs, click on the link below the tabs that says “More”. An “Edit” link will be displayed.
Clicking on “Edit” allows you to delete tabs (clicking on “x”), and reorder tabs.