I found the names of the installed applets in:
/usr/share/applications/hildon-status-menu.

Once you find the name of the applet you want to move, just edit the file /etc/hildon-desktop/status-menu.plugins the way that b0unc3 described:


[NAME_OF_THE_APPLET_HERE]
X-Desktop-File=/usr/share/applications/hildon-status-menu/NAME_OF_THE_APPLET_HERE
X-Status-Menu-Position= X

where in NAME_OF_THE_APPLET_HERE you obviously put the name, and in X you put a number that will represent the postion into the status menu .