AsyncFileUpload with FormView in Edit Mode

Hi there, i am getting some errors with my asyncFileUpload.

I have a page with <formview><updatePanel><AsyncFileUpload>

when it is in ADD mode, the page works fine.

Now I put it in EDIT MODE. I open the page and it works fine but as soon as i try to upload an image the nightmare starts.

Debuggin I can arrive to these conclusions:

1. when I open the page for the first time, the sequence is: method load, AdFormView_ItemCreated (empty method), the Bind Process, AdFormView_DataBound.... Everything is ok.
2. I click the button to upload and: AdFormView_ItemCreated, CONTROLSKIN(), Load, DataBound... but at this point controls are not recognized.

The FormView has not been created.

Any suggestion?

 Thank you in advance