Same as everyone else with Odin problems; Hopper8's 'Odin troubleshooting' thread stickied in General, find it & try as many of the troubleshooting steps as many times as you need to in order to get a successful flash.
There's nothing which isn't in the thread that can be suggested in these situations, it is 'the Bible for these situations. You may need to persevere (I.E keep at it, don't post here' Saying I've tried a few of the thing in the thread it won't work blah blah blah blah') as it sometimes takes a number of flashes or to actually try everything in the thread a number of times.
So...You now have the tools to get this done, the rest is up to you.
If it's important enough to cause you grief if it's lost, back it up. No excuses
Trolling for thanks is lame
Does Samsung's auto-brightness implementation crap drive you to self-harm ? A solution !
Failure to search is the leading cause of male impotence on XDA
If you don't know how to recover if things go wrong, what are you doing flashing custom roms ?