When the debugger is started from CW, it gets passed the ELF file to be flashed. If you do not specify it, then it does not get flashed :smileyhappy:
This is specified in the project settings, Build Extras tab,
in the Arguments, delete the %targetFilePath part (this gets expanded to the elf file).
You can also start the hiwave debugger any other way, just make sure you loads the right ini file (SofTec_HCS12.ini for SoftTec) as project.
Then do a File->Load Application and press the "Load Symbols" button to load the debug info, but not the code.
There are other ways to do this via command line too (LOAD "Test.abs" SYMBOLSONLY).
Daniel