Any one tried comment poster

Hi, I want to have reveiws of comment poster, is it any good...
btw I found a lot of spammy sites in yahoo which are ranking by spammin links
on various discussions boarda n guestbooks and it seems like they all are using some script similar to the coment poster... so please if any user here wud shed a light , if it works or not?

Also, what are other good linking scripts than xrumer etc..

link to program =

it's also shared here , I think..