I think that you may update your Codewarrior with the last service pack. In it,Your BDM will be supported.At the same time, Please to be attention,You also must copy your old BDM Driver named Opensource.dll,for example codewarrior 6.2 which was installed,You ,firstly,may copy Opensource.dll from codewarrior 6.2 which was installed and paste it to another where you want.Secondly, You may copy the last Opensource.dll to $codewarrior directory$\prog\gdi\ and replace the old Opensource.dll.
At last, You may use your coldwarrior to debug the HCS core and HC core. But if you want to debug ColdFire V1 Core,Please copy the old Opensource.dll to $codewarrior directory$\prog\gdi\ and replace the last Opensource.dll.If you need more help,Please continue to post.