The full trainer (v2.00.02653) did not "train" on my Windows 7 x64 system.
I launched the trainer first, then the game, then pressed F1 at the main menu (heard the "Trainer Activated" voice), selected the mission, pressed any of the Numpad keys 1-4 (numlock was ON!!), but no effect.. enemy fire is still deadly no unlimited shields or hull.
Also, it would be handy to have a stop timer or increase timer trainer for some of the timed missions like Episode 2: Desolating Cyclone - Eradication
[Edited by SJSJ, 5/25/2011 7:50:09 AM]
[Edited by SJSJ, 5/25/2011 7:50:49 AM]
Check your anti-malware software and ensure it is compatible with the trainer or disable it while you're playing the game.