TR8 upgrade, now my HTTP *ADMIN server is not usable.. ideas?

[ChrisH]

Error 404: javax.servlet.UnavailableException: SRVE0203E: Servlet [hadmins]: com.ibm.as400.httpsvr.gui.HTTPAdmin was found, but is missing another required class. SRVE0206E: This error typically implies that the servlet was originally compiled with classes which cannot be located by the server. SRVE0187E: Check your class path to ensure that all classes required by the servlet are present.SRVE0210I: This problem can be debugged by recompiling the servlet using only the classes in the application's runtime class path SRVE0234I: Application class path=[com.ibm.ws.classloading.internal.ThreadContextClassLoader@2b702b70]

I have a PMR with IBM but its a bit slow to resolve. I am curious if anyone has seen similar or can give me pointers of where to look.