I am using sugar pro 6.3.0 but when i redoeder my tabs with the Display Module Tabs and Subpanels option available in Administration tab, the tab like Accounts automatically gets displayed before other tabs even if the Accounts tab is displayed below the other tabs on the Administration»Display Module Tabs and Subpanels as shown below:

Any idea where to change that priority to see the tabs in the exact order as shown in the Displayed Tabs column in the above figure?
Click your username at the top, next to ‘Log Out’.
Then click the tab ‘Advanced’.
In the panel ‘Layout Options’, you should be able to arrange the order of tabs for the particular user.
Clicking ‘Reset User Preferences’ button on the same page should also fix it.