I don't "fly" out with the eject seat anymore, i just fall out under the vehicle and die.

Edit: Reinstalled the addon, now i think i might get thrust but my seat gets stuck in the vehicle.

Edit 2: Nevermind, just tried with the HL2 pod, no thrust, i just fall down.

Edit 3: Just tried it in singleplayer and it works fine. Seems to be a multiplayer issue.