Single Formdownloading when ODK open... Please help me

I have create server through google app engine. Inside server i have
upload my new form. The form is single, only one form is their.
I want that form should get download inside ODK App automatically when app
is open.
User of the ODK app should not download that single form manually. It
should be done, automatically.
i have done so many changes in ODK app code but still it's not working.
Please help me to download that single form automatically when user open
the app.
I need that code urgently..
Thank you in advance