Hello Jeff
Please download CodeWarrior v5.1 for HC(S)12, you can find this version from our website.
1) Please log on NXP Website (www.nxp.com) with email address and password.
2) Under <SECURE APPLICATIONS>, Click on <Software Licensing and support>, page appears showing your currently licensed products.
3) In ‘Product List’ page, select your CodeWarrior Suite. Then under its ‘Previous’ tab, find the CodeWarrior for HC12 v5.1.

If you get any problem when download his tool, please submit a service request. To do it, please:
1) Go to http://www.nxp.com/support/sales-and-support:SUPPORTHOME.
2) On the bottom of the page under Submit New Issues, click Hardware & Software.
3) Register with your business email to access NXP technical online support.
4) A verification email will be sent to your account. Click the link embedded in that email to verify your access.
5) On the NXP online support page, select Contact Support from the top menu and click “submit a new case” to start the process.
Best Regards
Fiona Kuang
Technical Information & Commercial Support
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