Trying to manually sign android package with jarsigner.exe and install with adb.exe

I've been trying to use the jarsigner.exe and adb.exe to manually sign an android package and install it on a API V8 emulator. I created a simple HelloAndroid project and it would generate a signed HelloAndroid.apk using the debug.keystore located in the user's .android directory. When launching from Eclipse, it builds and installs the apk on the emulator without a problem. I used the android tool