Virtual keyboard autorun?

Currently, I am working on a project to convert an old windows laptop running windows 98, into a modern tablet multi-media center running Xubuntu. Without a keyboard, I will need a virtual keyboard. I am thinking of using Klavier for this. I need Klavier to start up immediate upon startup but I have no clue how to make it open upon startup. Any ideas? Also, Is it possible to make it appear on the login screen?

Ubuntu already comes with this feature. Yay! Put the keyboard at the login screen, alter the Universal Access Preferences (by clicking on the little "guy in a circle" icon at the login page). Check "use on-screen keyboard". IIRC it also works after you login. If not, it's easy to install an on-screen keyboard. Also check out the settings under Preferences>Assistive Technologies.