Need to go back to the previous version!!! HELP ???

I have downloaded the latest viewer for second life but many of the settings adjustments that were on the previous version are gone on this one thus my Frames Per Second remains terribly low and slow in the running. As you can imagine this is not a good thing for someone who spends a great deal of time in combat inside sl ... Can anyone tell me where to look to get back on the previous version , a link perhaps?? Thanks Alot !!!

Leather

Links in the recent blog post at http://blog.secondlife.com/2008/04/03/the-new-viewer-a-well-oiled-machine/.