If your object doesn't have methods to click and type you may have to do this the hard(?) way.
1. Move and click from VB.NET.
https://www.google.com/#q=vb.net+move+mouse+and+click
2. Type something using SendKeys().
https://www.google.com/#q=vb.net+sendkeys%28%29
3. Be sure your object is has the focus or named in that SendKeys call.
- Bail out. Just forget it in VB.NET and craft it in AutoIT. I've pulled up some items like a SWF in a browser and automated it with AutoIT in the past but here, I'm just noting an escape route.