I got it working (see more recent thread with nearly identical subject), but to answer your questions here for completeness:
Tomcat 5.5.9-1ep Java 1.5.0 OS is some Unix flavor -- View this message in context: http://www.nabble.com/Can%27t-Login-after-Register-t937604c12275.html#a2627727 Sent from the Roller - User forum at Nabble.com.
