I am having a problem with getting my site cached on msn.

http://www.fortworth-texas-real-estate.com

it is showing an older version of the cached. the werid thing is i was number 1 for all my search terms themn all of a sudden it went away and this older version poped up. Also can some one look and make sure i am am doing every thing right to get and keep a good rank, Thanks alot