Welcome to the forums.
If you purchased the MC13192 Kit it should have come with CodeWarrior Special Edition which is the free limited version of CodeWarrior which doesn't expire. It has limitations on the code size instead.
You can register with FreeScale and download the updates from their web site. The current version of CodeWarrior is 6.2 for the HS08 MCU's.
Here is the statement from FreeScale about special edition CodeWarrior:
"Special Editions are fully functional, free download versions of the CodeWarrior Development Studio with code size restrictions on the build chain. Use these versions to build prototype software and evaluate Freescale silicon. Special Editions are pre-licensed, not bound to a single machine and are not time restricted."
I hope this helps,
Rodo