Brendan,
you can check the compiler versions by Help->About Freescale CodeWarrior, click the 'installed products', unfold plugins folder, unfold compiler folder and check the 'ppc_eabi.dll' version.
As you can see the compiler has changed a bit... For available detailled compiler options you may want to have a look at the 'Power Arch Build Tools Reference.pdf' document.
If this does not provide enough information, I would suggest to log a SR at
http://www.freescale.com/webapp/sps/site/homepage.jsp?nodeId=054670&tid=FSHand click the Submit An SR link.
Hope this helps....
Regards