all in one adsense and ypn plugin not displaying ads :(

i just created an autoblog and found that the allinone adsense and ypn plugin is not working well on my blog. It is only showing 1 ad per post, even though i have chosen 3 ads to show up.

pls help.

btw, its wordpress 2.8.5 and i believe that could be one problem why the ads are not showing up.

Are there any other plugins that i can use, that randomize ad placements ?