It appears a lot of the video effects are not available on Mac version of Premiere Elements 11. I really wanted the sharpen, anti-alias, and color pass, and it turns out that the help claims Sharpen is Windows Only, but it is available on Mac in the trial version. The others are missing...
(List stolen from http://www.elementsvillage.com/forums/showpost.php?p=641871&postcount=7 )
Video Effects (Windows Only)
Blur and Sharpen
Sharpen This one is available - I used a setting of 25 (0-4000) to clean up video ever so slightly.
Blue Screen Key
Green Screen Key
Message was edited - found sharpen does exist on windows