To download PlayOnLinux click here.
After installing PlayOnLinux download Typeit! for PlayOnLinux from this link.
See the screenshots for more information.
Click on Install a program.
Click on Install a non listed program.
Here don't select any option, just press Next Button.
That's all... Now you can run Typeit! on Ubuntu... :)
A very great thanks to PlayOnLinux team. :)