Can FileUpload be used on other than the Finish WizardStep?

[Bogdan]

Hi,

I have a Wizard control that consists of 4 steps. I'd like to place
FileUpload control on the 2nd step. I'd like the upload to take place
_after_ the 'Finish' button is pressed on the finish step. Unfortunately
the file is being uploaded whenever a user navigates away from the 2nd step.
The wizard allows a user to move between steps in a non-linear way using a
side bar.

Is there any way that I can make this to work?

Thanks,
Bogdan