Happy news .. My friend help me to fix this ..
I think this will help some one in that and i will write here how we did that ... ( there is no clearway but don't giveup )
Try this when there is nothing to do and stuck on this screen
1) Use Jig to get downloadmode
If it's works just flash a rom / firmware using odin
http://forum.xda-developers.com/showthread.php?t=731989
2) when jig isn't help you and can't get in to downloadmode
remove your battery and put it again and open odin and connect your data cable to phone
Some times odin will get your phone with "Firmware upgrade fail!" ..
If your phone get into odin ( yellow signal ) make it fast and flash any bootloader file using it ( that compatible to captivate )...
after that you can go to downloadmode using Jig
3) If this not work try removing battery and pushing vol. keys and connect your phone with cable ..
In this sometimes your phone will get into odin .. flash a bootloader file using odin
Try 3rd step over 20 times there is a chance .. ( there is no other way to do this except that JTAG/riftbox .. i never want to try this )
I did this over 100 times and last my phone recognized by computer ..
But phone will not show any downloadmode symbol this will connect with that "Firmware upgrade fail!" screen ..
This is all i did
I hope any one will help this
Thanks every one who helped me