I didn't make it!
To Fire Torpedos of any type while cloaked, go to your ship modding application, click on the torpedo tubes ex:"Aft Torpedo 1" Click on the Tab Labeled Weapon, Then un check the box the says Dumb Fire Capable. Save it and use the BCMP to plug/re-plug your ship in. And Voila! 2 Errors though: 1. You cant fire torpedos when not cloaked 2. You have to fire each indiviual torpedo. I reccommend that you make half of your tubes dumbfire capable and the other half not, that way you can fire either way.
There is already an good way to fire under cloak and being capable of firing not cloaked. Ever heard of the Technology Expansion? http://dynamic.gamespy.com/~bridgecommander/phpBB/viewtopic.php?t=17940&sid=ce579814df637ccc409b2370edc3ea3e
I would say it does work because of this: http://bridgecommander.filefront.com/file/Future_Technologies_2;31845x#447889