How do I register my Google Account in the android emulator running 2.2 api level 8?

Possible Duplicate:
Android Emulator - Trouble creating user accounts

I'm trying to register a Google Account with the Android emulator running 2.2 API level 8. Forums suggest that you can do this by going to Settings -> Accounts, however for me I only have the option to add a "corporate" account, i.e. an Exchange account, not a Google Account.

I wish to add this Google Account to test c2dm from the emulator.

Does anyone know how to associate a Google account with the emulator in this build?

Thanks, Eric