Gregory,
I tested with ArcPad 10 a while back and from what I recall it worked just fine. The location for applets has not changed. A lot of the older applets written for ArcPad will work successfully at newer versions. Worst that can happen is you try it and it doesn't work! But like I said, seemed to work fine for me at ArcPad 10. If you try it and nothing gets recorded, your field types are probably incorrect.