This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
You shouldn't be copying the server files from one version to another. If you have something application specific in those files, then just copy that part to the file in the newer version of the server. It's still not guaranteed that it will work, in which case you'll have to figure out how to port it.