How Do I Change The Desktop Order in Mission Control? Possible Duplicate:
  Is it possible to reorder spaces in Lion?  




Currently, it doesn't seem possible to just drag and drop the desktops to change their order. 

Is there any other way of doing it then?
Well i guess you're asking this because mission control 'automatically' changed the order you set up for your spaces.

You can't move them right in Mission Control but what you can do is disable that 'magic automatic ordering' in System Preferences => Mission Control => Disable Checkbox "Automatically rearrange spaces based on most recent use"
Then you can order them again using the Spaces Preference Panel.

Enjoy!