Root [AT&T] toolkit problem

[lotamaster]

so i was using the galaxy s3 toolkit and i tried flashing the all in one insecure boot image and cwm and everything, now when i turn my phone on, the samsuing image shows for half a second then the screen goes blank and nothing will work. please help!

 

[bradhoschar]

so i was using the galaxy s3 toolkit and i tried flashing the all in one insecure boot image and cwm and everything, now when i turn my phone on, the samsuing image shows for half a second then the screen goes blank and nothing will work. please help!

I have had nothing but problems using the 'toolkit'....after installing the drivers from the kit, Kies wouldn't work, and it would not put the 'stock ROM' into the correct folder to flash the phone.
I have always used the ODIN method to put CWM, root, and then flash with ClockworkMOD....In my opinion, the toolkit is garbage, and if you need help using ODIN, just let me know!
Thanks!