The videos have been re-uploaded with Xmus' blessing!
Here are the links and there is also a playlist containing all of them:
Vixen Step 01 -- Downloading Vixen and .net Framework
http://youtu.be/LH-63fub5BU
Vixen Step 02 -- Installing Vixen and .net Framework
http://youtu.be/-Nb9khQm4H0
Vixen Step 03 -- Setup Vixen for first use
http://youtu.be/RCw2Gp0WmB8
Vixen Step 04 -- Creating a basic Renard profile in Vixen
http://youtu.be/UuS79oHR2Sw
Vixen Step 05 -- Selecting a picture for adjustable preview
http://youtu.be/irvPnM5Wl2o
Vixen Step 06 -- Configuring adjustable preview
http://youtu.be/LqvZpVHpeCY
Vixen Step 07 -- Creating a sequence
http://youtu.be/KwwXMQinkBo
Vixen Step 08 -- Assigning names and colors to channels
http://youtu.be/3r_-V5gRnUQ
Vixen Step 09 -- Creating a beat track
http://youtu.be/a2_E4CdC_54
Vixen Step 10 -- Basic sequencing
http://youtu.be/V15o_AO4D_M
Vixen Step 11 -- Ramps and fades
http://youtu.be/KzRw6DzpFz8
Vixen Step 12 -- Mirror feature
http://youtu.be/KQ2nKR6ElM4
Vixen Step 13 -- Shimmer, Sparkle and Random
http://youtu.be/I3BlLPGNM9I
Vixen Step 14 -- On, Off and Intensity
http://youtu.be/-7cdUbSfVxE
Vixen Step 15 -- Chase
http://youtu.be/76-bVPH6FjA
Vixen Step 16 -- Wrap-up and Demo of Adjustable Preview
http://youtu.be/RF9ftzBVA2I
Vixen Step 17 -- Changing the order of channels
http://youtu.be/LtQHI0o8Xn4
Playlist for all 17 videos
https://www.youtube.com/playlist?list=PLUyKusBvLqrs_xdzgSSQpO7UzakBsR2gF