Help ME PLEASE....Urgent Situation!!!

Firstable..
I Would To Thank U For all the Effort
I Hope You The Best
You're The Best Site I ever Seen
I Have problem
I Have Samsung Galaxy Note II Dous (GT-N7102) China
And Some How The Device Just Stacked in The First Logo "Samsung galaxy Note II GT-N7102"
Simply I can access the download Mode
So I downloaded a suitable rom And Odin From Old Thread In This Site
But here The Problem !!!
My PC Cannot Recognize My Phone
I download Samsung Drivers But No Respone
Then I Changed my windows from 8.1 To windows 7 ULTIMATE 32 BIT
But No thing Happened
When I Open Odin I see The (IP:COM) Turn into blue and its value is ("0(4)")
when i choosed PDA file and start Flashing It stacks in "Setup Connection"
And then the message appear "cant connect to port or COM"
Please Help ME !!!
Its my phone
and im broke
i miss my GirlFriend