Jwplayer can play youtube video with ease in its own player
how to make k2 play youtube video in jwplayer and not in youtube original player

please help desperately looking for this..

I would check here - www.longtailvideo.com/support/jw-player/jw-player-for-flash-v5/12538/supported-player-embed-methods

for ways to embed jwplayer into joomla articles or k2 items...

If you are doing that and the editor is stripping tags you may need to add some tags in the cleanup paramaters of k2

thats sound too complicated to me..i thought i would just enter the embed code and it will do the job by itself...may be my job isnt done

try to get the embed code working in joomla article first to be sure all is well

then try to put the same working code into an item

maby that will help isolate your problems