I'm trading thru western union, is it okay? I don't know how to use escrow.
Is it okay in western union? Do you have any suggestions?
You might want to use escrow even dealing through WU because its also a reversible transaction according to theymos.
see:
https://bitcointalk.org/index.php?topic=14632.0Western Union (they reportedly will sue the recipient to recover money in some cases)