例一: I've it working too on V6. Just install the apk which Prof Peach posted a couple of pages ago. And it's working fine. The point to be noted is that it will replace the original HTC clock and just delete and install the clock Widget after you've installed the 4.0 clock apk.
例二: remove sense4 skin .apk using adb shell or terminal emulator and reinstall apk. (adb install) should works.
例三: Ok, I managed to get the sense 4 clock widget working. First change the skin to HTC original skin. Remove the clock widget from home. Then delete the original sense 4 skin from sd-ext/app_s. Reboot. After that , reinstall the app which can be downloaded from the link posted few pages back. Switch to the sense 4 skin. Add the clock widget back to home. You will get the sense 4 clock widget