Automate Workflow : Need to create workflow without user interaction

System

Hi All,
I need to create a workflow which is triggered automatically when a user clicks submit.
There are two screens which are displayed
- Submit Now, Submit Later
- Workflow Instantiation Screen with Finish Button
My workflow does not have any tasks that need user intervention. The tasks are Submit to Staging Task, Deploy Task and External Task.
I am using a WFM workflow for TS 6.7.2 on Windows 2003.
Is there any way not to have these screens.
I am also open to options other than the workflow.

Please help.