In addition to what JOHNNYG suggested. The search function is a very power tool on any web site, so please don't be afraid to use the search function before making a posts that "maybe" answered over million times. Sorry i am not been rude
I am going to give you the answer that your going to find when you search, which is; If your interested in getting Ultimate Edition 2.5, just do a cleaning installation as upgrading is not possible at this point in time!!