Is there a video for re-installing 55-069-3 glazing bead?

I'm afraid we don't currently have a video on how to install the 55-069-3 Acorn glazing specifically, but I can still help. To cut the glazing bead to size, I would suggest using a heavy set of scissors or a hacksaw. I would also just replace the ones that are bad for now, you can reuse the old strips as long as they are undamagead. We also have a video on how to install more generic glazing that you may find useful. The process is similar.