Ipw2200 can inject, but only in certain conditions:
- Card has to be in managed mode and associated to an ap.
- It can only inject data packets.
With this in mind, aireplay-ng attacks 2 and 4 are possible, and probably also 3. Attacks 2 and 4 have been successfully tested.
Get latest aircrack-ng version, it comes with the required patches for ipw2200. You may read this thread in forum.