I have lost almost $2000.00 at yahoo's auctions, doing different things to
recover,but so far it does not look good and very lenthy.Any body out there can
help me recover my money will be highly apprreciated and rewarded 10% to 20% of
the recovery.Sooner the recovery higher the reward. thanks

http://help.yahoo.com/help/us/auct/abid/insure/index.html

If you can't get help through Yahoo, your next step would be to file a
complaint with the FTC.

Hope this can get you started.

If you paid via credit card, or via paypal payment drawn on a credit
card, your first step should be to dispute the charges. If you pay for
something and don't get it, your credit card company will be plenty
happy to cancel payment of the charges.