I am trying to watch an archived webcast; however, when I enter the information it asks for it doesn't re-direct me to the webcast. The one I am talking about can be found at the link below...
Hyper-V vs. vSphere: Understanding the Differences - A Webcast from SolarWinds
I'm sorry, but I am unable to replicate your issue. I was able to fill out the registration form to watch and the video started about 5-7 seconds after I hit submit. Please try again (maybe in a different browser, i'm using chrome) and if it still does not work for you I can try to track down another resource link for the recording.
Well, it certainly seems to be working now. I guess I will chalk it up to those darn web gremlins.