There is also the client side AO that is highly recommended.
Advantages
-Does not take up sim script resources, so lower lag for you and everyone. -Better performance, smaller delay times, no lsl event lag -Unlimited memory. Have over 9000 different stands without any problem. -Extra attachment points now free -Works and can change in no-script zones.
http://wiki.phoenixviewer.com/doku.php?id=client_ao