Thanks, but I already have it installed, as far as I can tell. Here's what CW reported:
at the top of the list:
CodeWarrior Devel ... HC08 5.1, build 6124
CodeWarrior Devel ... HC08 5.1 Compiler Patch 1, build 6192
and a little further down the list:
CodeWarrior Devel ... HC08 v5.1, Service Pack JW32, build 060721