Software for put Text Overlay on streaming webcam

Hi there!
I am looking for software (preferably free, but if you don't know of any then I will pay for one) which will be able to put a copyright stamp or text overlay on streaming webcam. The website i need it for is www .myfreecams. com and i believe it's a flash based website, adult based so if anyone under 18 is reading this please DO NOT follow that link.

I have searched the web with no avail, I am unsure of 'ManyCam' will work with this website if anyone knows of any software that will be able to do this it would be a great help.

Thanks Guys =)

 

Many Thanks