From one of the links found out that...SpringBoard needs to be refreshed...did that with help of "BossPrefs"...

now the app shows up on the dock....

but still it doesn't run...when i launch it...it just gets killed...

i transffered the app to /Applications folder...and then signed the app
with help of command "ldid -S /Applications/HelloWorld.app/HelloWorld"...

but still the app gets killed...

Where am i going wrong...

Thanks
amal