Is there any Software equivelant to silver light for video streaming on Ipad2

No, there is no equivalent ot Sliverlight. What website are you trying to go to? Netflix? If so, then Netflix has it's own app that doesn't need Sliverlight.

I am trying to view training on http://fda.yorkcast.com/webcast/Viewer/?peid=040308365ec8405bad39b06de8561bdc1d. This requires Silverlight. Is there a Silverlight equivalent for iPad?

As Asatoran state, there is no Silverlight equivalent for iPad.