Link not found :(
I don't know what you call those things either, I always called them 'crawls'.
Anyway, I try to do that type of graphic in after effects, and save the animation Premultiplied with an Alpha (Millions+ Colors). If the animation is premultiplied, you won't need to mess with any Premiere filters to matte the graphic.
You could also create a graphic in Photoshop, drop it into Premiere, than control it's motion by adding keyframes in the Effect Controls/Motion palette.. or you could fade in/out, straight cut, whichever.
Another consideration is, do the graphics need to be interlaced?