The Services are sorted by the modified date, in all versions less than 2.2.
So they are sorted by last update date/time descending order.
Sign into MET/TEAM with a user account that has "configuration" rights.
click on Setup-->Services
Click Find to see all Services
Double click on the one you want on the bottom of your list
Edit the Notes by adding a space to the end of the notes and then remove the space.
Repeat for the other Services, based on the list you want them to appear in order (bottom of list to top of list).
Typically "Calibration" will be the last on edited, therefore putting it on Top of the List when receiving items.