you unzipped and adb pushed the files to the correct spot? if you would like, gChat @ me and i can guide you through step by step
Here's what I did. I'm on Windows 7.
1. CMD
2. CD (Change Directory) to the Tools directory of the SDK.
3. USB Debugging enabled
4. On phone, use Root Explorer to verify that those files are in /system/app
4.5. Extract htcdialer.apk and phone.apk into Tools directory.
5. On PC, use adb push htcdialer.apk /system/app. Prompt is returned that file copy was successful.
6. Repeat step 5 for phone.apk.
7. Attempt to make call. Force Close.
8. Reboot phone. Still getting Force Close.
If you can think of anything I should try, we can chat, but I think I've got it all!

