Cwa inter

I am a postal student and i am giving both groups in DEC'11.i hav compltd my GD\BC and my computer coaching is in process. i didn't submit ET for all subjects as i was busy with my CA coaching and article-ship and now i am hearing from some CWA students that i don't submit my ET they will block my admit card or my result. kindly tell me is it true or not?? n if da same is applicable to CS inter?? thanxx in advance