I hope On-Screen Keyboard Magic helps you....

On-Screen Keyboard Magic is utility that controls the behaviour of Microsoft On-Screen Keyboard on the screen and adds many elegant features. On-Screen Keyboard Magic is intended to improve usability and accessibility of Microsoft On-Screen Keyboard. On-Screen Keyboard Magic is small tray-based program.
With it you can:
Change size and transparency of Microsoft On-Screen Keyboard.
Quick switch input language by right mouse button click on Microsoft On-Screen Keyboard.
Hide the title bar of Microsoft On-Screen Keyboard.
Show and hide Microsoft On-Screen Keyboard by using wheel mouse button.

You can find it @ http://www.sharewareconnection.com/titles/pop-up-keyboard.htm