Yahoo Directory Listed or Not Listed!

I want to buy a domain name which is quite aged and has good valid PR. But I am really suspicious about whether it's listed in Yahoo Directory or not! The seller is claiming so and so are the domain checker tools!

It's a 1 word .org domain with an extra "S" at the last of the domain! When I search for it in Yahoo Directory the domain name returns result but without the extra "S" .org domain!! It's not even being redirected!!

Any help will be greatly appreciated All I want to know is if it's normal or not!

probably fake, can you not check by visiting the Yahoo Directory and clicking the link to see if it goes to that domain name you are wanting to buy?