Supporting multiple Android versions with different screen sizes

Supporting multiple Android versions with different screen sizes

I am writing an application which I intended to target starting from
Android OS 2.3.3 to the latest release. I have to give support for
multiple screen sizes.
I undrestand that I can provide multiple screen sizes support using
drawable-hdpi, drawable-mdpi etc, however these were introduced in version
3.2. Before 3.2 it was somethign like drawable-small, drawable-normal etc.
If I create application which targets devices from os version 2.3.3, what
kind of resources terminology should I use? If I use drawable-hdpi etc,
would it work on the device having OS below than 3.2?
Thanks Bsengar