Google displaying “old” information

[johnnyjeep]

I work for Jeep Parts •Jeep Soft Tops •Jeep Accessories at Jeep 4x4 Center, specializing in Jeep Wrangler YJ, TJ, JK and Unlimited, Jeep Rubicon, Jeep CJ5, CJ7, CJ8, Jeep Cherokee, Grand Cherokee and Willys. yesterday (april 16 200 we lost our ranking on google for the keywork (jeep parts) we were back and for (#4,# 5,#6 ...#12 position)
when I do a search for Jeep Parts •Jeep Soft Tops •Jeep Accessories at Jeep 4x4 Center, specializing in Jeep Wrangler YJ, TJ, JK and Unlimited, Jeep Rubicon, Jeep CJ5, CJ7, CJ8, Jeep Cherokee, Grand Cherokee and Willys. ,my index page display information from an old page that no longer exits. But not only that if I do a search for http://www.jeep4x4center.com/sitemap.xml not result is found.
I wonder why is this happening? maybe I am doing something wrong. Any feedback would be appreciate it.