Can someone help me with this?

I built the app with xcode 3.1 (SDK 3.0 - iphone release) - No errors.

Had code signing turned off (do not sign code in project settings) I also edited the SDKsettings file to turn off the default code sign.

After that I transferred the myapp.app to the /Applications folder. Checked permissions, were set to 755. Ran ldid -S /Applications/myapp.app/myapp

No errors, so I assume ldid did its job. Now after I respring I see the icon on the springboard, but when I go to launch it, it just crashes instantly every time.

I also packaged the .app folder into an ipa and tried using installous to install my app. Funny thing is that it works, but it is installed as a regular app not a jailbreak app, so I am worried it will not work through Cydia...What can be the problem?

Hi,
This topic has been already covered.
Check this thread : http://www.hackint0sh.org/f9/57254.htm

__________________
Game remake

Try
chmod 777 /Applications/helloworld.app/executable
instead of 755

... or, if it still doesn't work,
chmod -R 777 /Applications/helloworld.app