How many tires should I put snow chains on my 2005 Accord EX-V6?

The owner's manuals says to only put on the front tires and to use the vendor Security Chain Company (SCC).

However, SCC says to put the chains on all tires. And, I can only locate one type of chain recommend in the manual. Does it really matter on the vendor and model # or as long as it's the same type of chain reco'ed by Honda?

Any reco's/thoughts?