I think Java SE 5 last update is 22. Public updates ended long time ago.
However, if you are referring to Java SE Advanced (for business) then there is indeed updates > 22. But seem no "public" download. You most likely need to login to "My Oracle Support".
Java SE Advanced and Java SE Suite Downloads
Oracle does not provide installation programs that correspond directly to Java SE, Oracle Java SE Advanced and Oracle Java SE Suite. Depending on the features licensed, one or more of the following individual packages may be downloaded from My Oracle Support:
Java SE Runtime Environment (JRE)
Java SE Development Kit (JDK)
JRockit Mission Control