Apache Tomcat Expert / System Admin

are you familiar with apache w/ tomcat, using a clustering config ? we need to integrate apache with multiple tomcat 6 JVM web server adapters on our windows 2008 server . we've developed and java-based e-commerce solution for one of our clients. we have both a QA and prod server. we're having issues with sessions been lost , as we transition from http to https . we talked about having to do session replication etc . we are also having to keep restarting our prod server to install JAR files, and our users are been affected as well. are you familiar with any of these issues and how to resolve them? we also need help installing new instances of Apache/Tomcat for other clients, and providing support, i.e. upgrading to Tomcat 7. We expect you to produce documentation and step-by-step lists of installing, for future reference. Also, we expect you to be available via Skype at predetermined times, to provide on-going support for us developers, on a per hour basis or fixed-fee arrangement.