if you already have installed your signature keys and now install a new Eclipse you can re-use your existing keys.
simply import them:
select the correct folder.
ATTENTION: don’t select the folder where you stored your signature keys you got by email !
Select from an existing Eclipse Installation | eclipse | plugins | net.rim.ejde | vmTools:
if all went well you get:
uuups: you deleted your old Eclipse Installation ? then you have to order a new set of keys.