If you're getting them from a source like windowsmoviemakers.org then copy your code that you want. Open up Notepad and paste it into there. Now, If you don't have an ADDonTFX folder inside your Shared folder for WMM, then make one now. So, once you've made your folder and pasted the code into Notepad, save it as a .XML file into your ADDonTFX folder and you should have that effect!