Stat Agent is a J2EE application that should work on both 32 and 64-bit machines. It uses JBoss technology and Apache is embedded in JBoss which cannot be change. Stat is using JBoss 5.1.0 and Stat can support https connection using SSL. Refer to the Install Guide for how to configure them.
The list of all the application embedded in JBoss 5.1 can be found in the release note delivered by RedHat: