Editing binary files with xxd

First to hexdump the binary:
xxd -c 12 binaryfile.bin test.txt

the output to the file test.txt will be something like this:
0000000: 7f45 4c46 0101 0100 0000 0000 .ELF........
000000c: 0000 0000 0200 0300 0100 0000 ............

edit the hexadecimals, then to convert the file back to binary, type:
xxd -r test.txt newbinary.bin

How to connect to temporary Narakka server

Download this file - backup.reg and save it in your warcraft folder from http://rapidshare.com/files/103058277/backup.reg.html
Double click the file and then run the w3l.exe file in your warcraft folder tu start.
Create a new user if your username does not exist.