Categories will display in alphanumeric order by default. If you wish to show them in a particular order, you can place numbers or letters in front of the category name. For example:
01 Local Government
02 Small Business
Here's how it will look on the category dropdown:
By default, fields will appear on tabs in the order they were created in. You can change this by dragging and dropping the field to the correct place when Configuration mode is toggled on in Settings > Applications > Form editor.
You can also reorder your fields by adding a numeric value to the Field order which can be found at the bottom of the settings page for each field (Settings > Applications > Fields). We recommend using multiples of ten (10, 20, 30, etc) for the field order to make it easy if you later want to insert a new field between two existing ones.